Monday, December 30, 2019
Cognitive Psychology The Mind As An Information Processor
Though we may not realize it nor want to acknowledge it, Cognitive Psychology is a part of every human s daily life. Cognitive Psychology is the scientific study of the mind as an information processor. In a simpler definition, it is the study of how our minds interpret and process things that we either are informed of or something we take into thought. Cognitive Psychology is a part of our attention process, language use, our memory for both long and short term, perception, problem solving, creativity, and the way we think. Each of these different features are a part of how we perceive information, think, remember, and use the information we gather. Through this branch of psychology, researchers are able to observe the relationshipâ⬠¦show more contentâ⬠¦Neisser wrote the first published book on Cognitive Psychology in the year of 1967. This book revealed his research on new-found information on how people learn, the structure of the brain and how we think, how the brain stor es knowledge, and how humans use knowledge. Neisser was concerned that cognitive psychology was starting to become distant from reality. Therefore, he suggested that cognitive psychologist redirect their interested attention and pay more attention to the world in which cognition is lively occurring. A few more important figures in our society to the cognition world would be Aaron Beck, Albert Ellis, and Walter Mischel. Beck was a developer of cognitive therapy by which is now used to help disorders that vary from depression, panic attacks, eating disorders, and even addictions. Becks therapy fell right into the works of Ellis, who created behavioral therapy to help like rational-emotive therapy.Then, Mischel took both of these therapies and combined their theories to focus on personality formation and the issues with the conscious. As studies continued, the obvious came along that nothing is perfect including our minds. By this, psychologist found mental disorders. The study of the se disorders are known as Psychopathology. The study of Psychopathology brought to attention that these cognitive disorders start slowly and progress until they affect oneââ¬â¢s life toShow MoreRelatedThe Rise of the Cognitive Perspective1123 Words à |à 5 PagesRise of the Cognitive Perspective Throughout the history of modern psychology there has been no greater breakthrough than the development of the cognitive perspective. From the beginning of the late 1950 s, the cognitive perspective has dominated all other forms of psychology, but to better understand why this perspective rose so quickly one must first understand what it is. The cognitive perspective can best be described as a genre of psychology concerned with how people acquire, store, transformRead MoreEssay on The Sophistication of the Brain1473 Words à |à 6 PagesTo what extent is it true that the brain is a sophisticated information processor? The human brain is the most important part of the nervous system. The brain along with the spinal cord makes up the central nervous system and together they control all of the bodyââ¬â¢s important functions, such as motor functions, speech, vision, hearing and also involuntary functions like breathing. Many of these functions are localised to a specific area of the cerebrum. The cerebrum is split into four lobes; theRead MorePsychology : Cognitive Psychology And Psychology980 Words à |à 4 Pages A Cognitive Psychology 1064 Words 5 Pages Cognitive psychology began around 19th century. Different approaches have been used to trace the roots of psychology. It is also known that cognitive psychology was out numbered by behaviorism but later revived, bringing into being cognitive revolution. The paper discusses cognitive revolution in the history of cognitive psychology as the most influential part in the practice of modern psychology. Introduction A scientific branch of psychology that isRead MoreCognitive Psychology Essay1069 Words à |à 5 PagesCognitive psychology began around 19th century. Different approaches have been used to trace the roots of psychology. It is also known that cognitive psychology was out numbered by behaviorism but later revived, bringing into being cognitive revolution. The paper discusses cognitive revolution in the history of cognitive psychology as the most influential part in the practice of modern psychology. Introduction A scientific branch of psychology that is concerned with the study of cognitionRead MorePsychological Approaches : Behaviorism, Cognitive And Humanistic Approach1659 Words à |à 7 Pages1.1 Analysis of three psychological approaches; behaviourism, cognitive and humanistic. Three psychological approaches will be discussed in this essay, it will analyse the strengths and limitations of each the humanistic, cognitive and the humanistic approach. This essay will consider the contributions made to therapies in the modern life; evaluate how valid the methodology is using case studies to back up these theories and how they contribute to each other to becoming an approach. The behaviouristRead MoreI Am Looking At Where Psychology As A Discipline1361 Words à |à 6 PagesHistory of Psychology In this essay I am looking at where Psychology as a discipline has come from and what affects these early ideas have had on psychology today, Psychology as a whole has stemmed from a number of different areas of study from Physics to Biology, But the first Psychological foundations are rooted in philosophy, which to this day propels psychological inquiry in areas such as language acquisition, consciousness, and even vision among many others. While the great philosophicalRead MoreEssay about History of Psychology1417 Words à |à 6 PagesExplain the reasons for the development of psychology as an academic discipline in the 19th and 20th centuries, making explicit the important turning points and breakthroughs. In this essay I am looking at where Psychology as a discipline has come from and what affects these early ideas have had on psychology today, Psychology as a whole has stemmed from a number of different areas of study from Physics to Biology, But the first Psychological foundations are rooted in philosophy, which to thisRead MoreEssay about Social Cognition - Psychology1410 Words à |à 6 PagesSocial Cognition: A science The psychological definitions Breakdown of social psychology Relations to other corresponding theories The theory of social cognition Incorporating stereotypes Schemata Cultural social cognition Holistic thinking Social cognitive neuroscience A personality in jeopardy Social Cognition Social cognition is the encoding, storage, retrieval, and processing, of information in the brain. It is a process that is generalized within a species, and relatesRead MoreStrengths And Weaknesses Of Psychology1411 Words à |à 6 Pagesstated that within ââ¬Ëcontemporary psychologyââ¬â¢ there are many different approaches used to understand the study of human behaviour, with each approach having a different perspective. There may be many theories within a psychological perspective, but they will all have common assumptions on the way we function. As no approached is viewed as right or wrong, they are often just evaluated for their strengths and weaknesses and what they have brought to modern psychology in the understanding of human behaviourRead MoreThe Psychoanalytical Theory Of Psychology1567 Words à |à 7 PagesThe Psychoanalytical Approach to psychology is arguably the first theory of psychology. The psychoanalytical approach is the study of unconscious forces and how t hese affect our behaviour. Freud was the first to challenge the view that mental disorders were not caused by physical illness. Instead he proposed that psychological factors were responsible. Freud is a key theorist of the psychoanalytical approach. He was an Austrian neurologist who was fascinated with studying hysteria. Freud began
Saturday, December 21, 2019
The Film American History X - 1248 Words
The film American History X begins with an average American middle-class family; four well-behaved children and two all-American parents living in Long Beach, California. The father is killed in a shooting, leaving his eldest son, Derek, the head of the household. Derek becomes enveloped in Neo-Nazi culture from the end of his adolescent years into early adulthood, and he becomes the leader of a gang. At this point, his younger brother, Danny, is an adolescent and begins mimicking his older brotherââ¬â¢s behavior. But the turning point of the movie is when Derek is convicted for murdering a black man and serves three years in prison. This film is primarily an example of moral growth, ontological shock, and choosing what kind of influence one wants to project onto others. Derek realizes that he is going to be held accountable for all of the viewpoints he has ââ¬Å"endorsedâ⬠to others, that with drastic actions come drastic consequences, and that autonomy is a powerful force when fueled with willpower. The importance of social influence is a strong theme to American History X, which is why I think Lev Vygostkyââ¬â¢s socio-cultural theories surrounding cognitive development can explain the filmââ¬â¢s meaning well. According to Vygotsky, the interactions a person has between the environment and other human beings determines the learning that takes place. The type of environment that a child grows up in also greatly affects a person throughout life, as well. Vygostky also believed that tutorsShow MoreRelatedPrejudice in the Film American History X1422 Words à |à 6 Pagesno one is free from it. In the film, American History X, Derek is a great example of how prejudice someone can be. Derek agrees with the white power movement because he feels victimized and threatened by everyone who is not white, but in prison he learns his stereotypes are full of holes; from the film I learned there is no reason to hate one another based on race or stereotypes. Life is too short to live a life based on hate. Throughout the film, American History X, Derek feels victimized and threatenedRead MoreAnalysis Of The Film American History X1537 Words à |à 7 PagesVandalism, murder, and rape are only a taste of the violence presented within the film American HIstory X (Tony Kaye). In his work, Kaye explores the origins of racism through the minds of Derek (Edward Norton) and his brother, Danny (Edward Furlong); however, the film tells the story of far more than these two brothers. It tells the story of all those who have ever overcame their prejudice feelings through the process of introspection and their proximity to those they are prejudice towards. WhileRead MoreFilm Review of American History X1110 Words à |à 5 PagesThe film American History X is rated by the users of IMDB.com (Internet Movie DataBase) as one of the 50 best films ever made. It is a crime/drama, a very violent film; not for the faint-hearted. American History X was released in 1998, and it is directed by Tony Kaye. Casting: -Edward Norton (Derek Vinyard) -Edward Furlong (Daniel Vinyard) -Avery Brooks (Dr. Bob Sweeney) -Stacy Keach (Cameron Alexander) -Beverly DAngelo (Doris Vinyard) -Jennifer Lien (Davina Vinyard) Read MoreThe Film American History X A Neo Nazi Essay1490 Words à |à 6 PagesIn the film American History X a neo-Nazi named Derek struggles with what he believes and how it impacts his family. Throughout the film Derek is swayed into beliefs due to various events that can be interpreted in various ways. From the death of his father, the social injustices examined within the media, and even his fatherââ¬â¢s own beliefs pressed onto him, Derek develops a discriminatory attitude leading him to go so far as becoming a neo-Nazi. His beliefs can actually be explained by social psychologicalRead MoreEssay Rhetorical Visions in the Film, American History X3044 Words à |à 13 PagesRhetorical Visions in the Film, American History X ââ¬Å"Hate is baggage. Lifes too short to be pissed off all the timeâ⬠. This is a quote from the film American History X. This film sends out a powerful message about hate groups such as skinheads and Neo-Nazis. The vision of this movie is to make others aware of the complex life of a skinhead. Through different symbolism we see how society views this group. We also are made aware of the continuous cycle of violence that continues to existRead MoreAmerican History X : Tony Kaye Essay1651 Words à |à 7 PagesAmerican History X (Tony Kaye. 1998), is an example of a Hollywood film that boldly embodies Bernardiââ¬â¢s argument; ââ¬Å"US cinema has consistently constructed whiteness, the representation and narrative form of Eurocentrism, as the norm by which all ââ¬ËOthersââ¬â¢ fail by comparisonâ⬠(Bernardi page5). The plotline centres on the main character; a former neo-Nazi skinhead named Derek Vinyard, and his attempt to stop his younger brother- Danny Vin yard from getting involved in the white supremacy gangs of LosRead MoreAnalysis Of The Movie American History X 1586 Words à |à 7 PagesIn the movie, ââ¬Å"American History Xâ⬠, the plot surrounds the life of two brothers who are involved with the D.O.C. a well-known white supremacist group in Venice Beach. Danny Vinyard is a high school student who admires his older brother, Derek, a former skinhead. Through the incarceration of his brother Derek, Danny becomes more affiliated with the skinheads and is mentioned at times as being the resemblance of his elder brother. The movie begins with flashbacks of Derekââ¬â¢s incarceration, and everythingRead MoreRacism in American History X951 Words à |à 4 PagesAmerican History X is clearly a film dealing with racism. The interesting thing about this film is the way in which the subject is treated. First of all, it is obvious that, though racism is always a difficult subject to deal with, American History X presents it witho ut any reservations or dumming down. Second, the films figurehead for racism, Derek Vinyard (Edward Norton), is not an unintelligent redneck racist as films often portray them, but is in fact well-spoken, charismatic and intelligentRead MoreEssay on Racism in American History X936 Words à |à 4 Pages American History X is clearly a film dealing with racism. The interesting thing about this film is the way in which the subject is treated. First of all, it is obvious that, though racism is always a difficult subject to deal with, American History X presents it without any reservations or dumming down. Second, the films figurehead for racism, Derek Vinyard (Edward Norton), is not an unintelligent redneck racist as films often portray them, but is in fact well-spoken, charismatic and intelligentRead MoreMovie Review : Falls Short Of Expectations 1407 Words à |à 6 PagesIndeed, American History X; directed by Tony Kaye is a film just about that subject and absolutely gives the vi ewers watching it an immense amount of violence. There have been critics like Peter Travers; movie critic from Rolling Stone Magazine, for instants, who have gone on to praise the film and even calling it ââ¬Å"An explosive, scorched-earth drama.â⬠They explain how the film was powerful and important for people to watch. Other critics, such as Ed. Jim Craddock has stated that the film ââ¬Å"falls short
Friday, December 13, 2019
Skeletal, Muscular Articular Systems Free Essays
string(133) " points of attachment for muscles that are responsible for moving the upper limbs; mobility is high as these girdles are very light\." |Skeletal, Articular and Muscular Systems | |Human Anatomy Physiology Assignment 6 | |A short study of the human bodies skeletal, muscular and joint types. | Contents Task 12 Task 23 Task 3a8 Task 3b0 Task 4a10 Task 5a10 Task 6a11 Task 6b14 References16 Pictures/Figures16 Task 1 Task 1A A patient with a bone mineral density T-score of -2. We will write a custom essay sample on Skeletal, Muscular Articular Systems or any similar topic only for you Order Now 7 would be suffering from osteoporosis. â⬠¢ Normal BMD, T-score -1 SD â⬠¢ Osteopenia, T-score between -1 -2. 5 SD â⬠¢ Osteoporosis, T-score -2. SD â⬠¢ Severe Osteoporosis, T-score -2. 5 SD with associated fractures. [1] Task 1B Key hormones associated with bone formation in men/women are PTH (parathyroid hormone) produced by the parathyroid glands, and Calcitonin produced by C-cells. In children, HGH is important and is most involved in epiphyseal plate activity; in adolescents the sex hormones testosterone and oestrogen play an important role in bone growth, growth hormone (HGH) is modulated by the activity of the thyroid hormones, ensuring that the skeleton has proper proportions as it is growing. Later in adolescence, the sex hormones testosterone and oestrogen induce epiphyseal plate closure in the long bones; an excess of growth hormone during this development phase can lead to gigantism, while a deficiency of HGH and/or the thyroid hormones would produce dwarfism. Low blood levels of ionic calcium will stimulate the release of PTH; in turn stimulating osteoclasts to resorb bone and thus releasing more calcium to the blood. Osteoclasts will break down both old and new bone matrices, osteoid escapes assimilation due to its lack of calcium salts. Read Renal System Physiology Physioex Rising levels of blood calcium will end the stimulus of PTH, declining levels of PTH will reverse these effects; causing the level of blood Ca2+ to fall, calcitonin only has a negligible effect on calcium homeostasis in humans. (Marieb Hoehn, 2010, pp. 185-86) Task 1C The major supplements used to help sufferers of osteoporosis are calcium and vitamin D, aim for at least 700mg of calcium from food/drink intake; when using calcium and vitamin D to help osteoporosis then a formulation prescribed by a doctor should be sought. Most over the counter calcium/vitamin D supplements do not contain the correct amount and ratio of calcium/vitamin D, to help treat osteoporosis a formulation containing 1. 2g of calcium and 800iu of vitamin D[2] should be taken. (NHS , 2011) Other good dietary sources of calcium are small fish (with bones ââ¬â sardines/pilchards), low-fat dairy products and dark green leafy vegetables (broccoli/cabbage/okra) as are tofu (soya) and nuts. (NHS, 2011) Good dietary sources of vitamin D include all oily fish, eggs; fortified spreads and liver. It is also important to get the appropriate amount of sunlight, as the UVB rays penetrate skin where they are converted into pre-vitamin D3 by cutaneous 7-dehydrocholesterol. Aim for at least 5-30 minutes per day of UVB during the hours of 10am to 3pm, to the legs; face; back and arms for sufficient vitamin D production; cloud cover and darker skin tones will reduce the available UVB. (USA. Gov, 2011) Task 1D High impact sports, such as running; weight training; walking; aerobic exercise and squash are all good for increasing BMD, low impact sports such as swimming and cycling have no positive effect on BMD. Exercise regimes should be undertaken at least twice per week, preferably three times p/w of 30 minutes or more, and of course should be supervised by a qualified individual. The level of intensity should be low at the start of the regimen, increasing the number of repetitions and/or weight over time. Any BMD gains achieved would be lost if the exercise regime is stopped, and thus regular face-to-face contact is important to help foster a positive mental attitude. (Todd Robinson, 2003) Individuals suffering from osteoporosis should be careful when undertaking vigorous high impact exercise, due to the weakness of the skeletal system; most importantly, an active lifestyle coupled with regular exercise should be followed to help combat osteoporosis in advancing years. Task 2 Task 2A ââ¬â Axial Skeleton Eighty bones separated to form three regions (skull, vertebral column thoracic cage) make up the structure of the axial skeleton. The parts of the axial skeleton form the longitudinal axis of the body, protect the brain/spinal cord and support the neck/head/trunk. The skull formed of the cranial and facial bones is an exceptionally complex bony structure; the skull serves as a compound for the frail brain, and has connection positions for the head/neck muscles. The vertebral column comprises of 26 asymmetrical bones connected to form a curved flexible structure that supports the trunk; extending from the skull to the pelvis the vertebral column transmits weight to the lower limbs. Providing attachment points for the muscles of the neck/back and for the ribs, it also acts as protection for the spinal column. The thorax, more commonly known as the chest consists of thoracic vertebrae; ribs; sternum and costal cartilages that secure the ribs onto the sternum. Forming a protective cage around vital organs, the thorax has a rough cone shape that is quite broad; the thorax also supports the shoulder girdles; upper limbs and provides the muscles of the back/neck/shoulders and chest with connection points. (Marieb Hoehn, 2010, pp. 199,216) Task 2A ââ¬â Appendicular Skeleton The appendicular skeleton is made up of the limbs and their girdles, the appendicular skeleton is appended to the axial skeleton; hence the name appendicular. The upper limbs attached via a yoke like girdle (pectoral) to the trunk of the body; and the lower limbs secured by the pelvic girdle. The bones of the upper/lower limbs have different functionalities and mobility, but still have the same essential plane; that the limbs are constituted of three key divisions linked via alterable joints. The appendicular skeletal structure allows us movement such as taking a step, picking up a cup or kicking a ball. The pectoral girdle is comprised of an anterior clavicle and a posterior scapula; the shoulders formed from the associated muscles and the paired pectoral girdles. Attaching the upper limbs to the axial skeleton, the pectoral girdles also present points of attachment for muscles that are responsible for moving the upper limbs; mobility is high as these girdles are very light. You read "Skeletal, Muscular Articular Systems" in category "Papers" The upper limbs form from 30 bones, each bone described locally as a bone of the hand, arm or forearm; the arm is considered in an anatomical sense to be the upper limb between the shoulder and elbow. The lower limbs attach to the axial skeleton via the pelvic girdle and diffuse the weight of the upper body to the lower limbs, and provide support for the pelvic visceral organs. Some of the strongest ligaments in the body attach the pelvic girdle to the axial skeleton, the pelvic girdle is very stable but lacks the mobility of the pectoral girdle; carrying the weight of the body the lower limbs are subject to astonishing forces. Compared to the bones of the upper limbs, the bones of the lower limbs are much thicker and stronger. (Marieb Hoehn, 2010, pp. 223,233,237) Task 2b ââ¬â Axial/Appendicular Attachments The thoracic cage is thinly attached to the pectoral girdle, not like the pelvic girdle that is affixed to the axial skeleton by some incredible strong ligaments, some of the strongest in the body. The sockets of the pelvic girdle are deep and cuplike, the femur head is secured firmly in place in these sockets, the pectoral girdle is far more moveable but the pelvic girdle is much more table. The shoulders are formed from the paired pectoral girdles and their associated muscles, a girdle usually refers to a belt like structure that encircles the body, however in the case of the pectoral girdles this does not satisfy the said description. The medial end of each clavicle is joined anteriorly to the sternum and the distal ends encounter the scapulae laterally. The scapulae do not perfect the girdle posteriorly, as their medial rims fail to join to each other or to the axial skeleton, however the scapulae attach to the thorax and the vertebral column via muscles that garb their exteriors. The upper limbs are attached to the axial skeleton via the pectoral girdles and also provide connection points for the upper limb muscles. The girdles are light and this allows a freedom of movement that is not accomplished elsewhere in the body, as only the clavicle fastens to the axial skeleton, this allows the scapulae to move easily across the thorax. The hip joint being a ball and socket joint has a good range of motion; however, the shoulder has a wider range of motion. The joints strong ligaments limit movements, but do occur in all planes. Formed from the articulation of the femurs spherical head and the greatly cupped acetabulum of the hipbone is the hip joint. A circular lip of fibrocartilage (Acetabulor labrum) enhances the depth of the acetabulum; the diameter of the labrum is smaller than the head of the femur making for a snug fit of these articular surfaces; dislocations of the hip are a rare incident. Extending from the brim of the acetabulum up to the stem of the femur, the heavy articular casing wholly surrounds the joint; there are several robust ligaments that reinforce the hip joint capsule. These ligaments include the iliofemoral ligament, an anteriorly placed v-shaped ligament, and the pubofemoral, which is a triangular condensing of the lesser fragment of the capsule, and the ischiofemoral ligament that is a coiling posterior ligament. On either side of the pelvic girdle, the iliolumbar ligament connects the pelvis and vertebral columns. (Marieb Hoehn, 2010, pp. 225-226,233,267) Ligaments of the pelvic girdle: Iliolumbar ligament ? Anterior Sacroiliac ligament ? Sacrospinus ligament ? Sacrotuberous ligament ? Pubofemoral ligament ? Iliofemoral ligament ? Ischiofemoral ligament ? Sacroiliac ligament ? Ischiofemoral ligament ? Ligamentum teres Ligaments of the thoracic girdle: ? Capsular ligament ? Coracoclavicular ligament ? Costoclavicular ligament ? Coracohumeral ligamen t ? Glenohumeral ligament Task 2c ââ¬â Lordosis, Kyphosis, Scoliosis Cervical and lumbar secondary curvatures being convex anteriorly, are associated with a Childs development, this is a result of reshaping of the intervertebral discs and not from modification of the vertebrae. The cervical curvature being present at birth does not become distinct until 3 months when the baby will start to raise its head, whereas the lumbar curvature will develop when the baby begins to walk. During the early childhood years the vertebral problems of scoliosis or lordosis may appear as rapid growth of the long bones stretches muscles, lordosis is most often present during preschool years but is more often than not remedied when the abdominal muscle strengthen. This firming up tilts forward the pelvis and the thorax widens, thus developing the military posture in adolescence. At the onset of old-age many parts of the skeleton are affected, principally the spine; the discs thin and loose elasticity and hydration resulting in a probable rise in disc herniation, at 55 years old itââ¬â¢s not uncommon to have a loss of up to several centimetres in stature. Osteoporosis can produce further shortening of the spine as can kyphosis, in the elderly this is referred to as a dowagerââ¬â¢s hump, with age the thorax develops rigidity due to ossification of the costal cartilage, thus resulting in shallow breathing from a loss of rib cage elasticity. Abnormal spine curvatures, of which some are congenital and some resulting from muscle weakness, disease and bad posture. In the thoracic region of the spine, an abnormal lateral curvature is referred to as scoliosis (twisted disease) most often presenting during adolescence and more common in girls. Scoliosis can also be a result of muscle paralysis, unequal lower limbs (length) or severe abnormal vertebra structure, non-functioning muscles on one side of the spine will cause the muscles of the opposite side to exert an unopposed pull; forcing the spine into a misaligned position. Body braces and/or surgery are used to treat scoliosis during childhood and thus preventing a permanent deformity. Scoliosis can also cause breathing difficulties, due to the nature of the disease a compressed lung in not unusual. Kyphosis, often referred to as hunchback, is a thoracic curvature that is dorsally exaggerated; very common due to osteoporosis in elderly people and can also reflect rickets, osteomalacia or tuberculosis of the spine. An accentuated curvature of the lumbar vertebrae is called Lordosis (swayback), this too can be caused by spinal tuberculosis or osteomalacia. Lordosis can also be caused in a temporary form by carrying a heavy frontal load, a pregnant woman being one example. These individuals will usually pushback their shoulders in order to preserve their centre of gravity, this of course emphasises the lumbar arch. (Marieb Hoehn, 2010, pp. 217,243-244) Task 3a Structural Class |Structural |Types |Type of Mobility | | |Characteristics | | | |Fibrous[3] |Articulating bones joined by |Sutures (Short Fibres) |Child/Limited | | |fibrous connective tissue. |Adult/Synarthrosis | | | |Syndesmosis (Longer Fibres) | | | | | |Amphiarthrosis/Immobile | | | |Gomphosis (Periodontal Ligament) |Immobile | |Cartilaginous[4] | |Synchondrosis (Hyaline Cartilage) |Immobile | | |Articulating bones joined by | | | | |fibrocartilage or hyaline | | | | |cartilage. | | | | | |Symphysis (Fibrocartilage) |Slight Movement | |Synovial[5] |Joint capsule containing synovial |Plane |Nonaxial | | |membrane and synovial fluid. | | | | |Hinge |Uniaxial | | | |Pivot |Atlantoaxial | | | |Condyloid |Biaxial | | | |Saddle |Biaxial | | | |Ball Socket |Multiaxial | Task 4a |Characteristic |Skeletal |Cardiac |Smooth | | |Attached to bones, facial muscle skin. |Walls of the heart. Single unit muscle in walls of hollow | |Location | | |visceral organs (other than the heart) | | | | |multiunit muscle in intrinsic eye muscles, | | | | |airways large arteries. | | |Single, very long, cylindrical, |Branching chains of cells; uni-|Single, fusiform, uninucleate; no | |Shape and appearance |multinucleate cells with obvious |or binucleate; striations. |striations. | | |striations. | | | | |Epimysium, perimysium and endomysium. |Endomysium attached to fibrous |Endomysium. |Connective Tissue components | |skeleton of heart. | | | |Voluntary via axon terminals of the |Involuntary, intrinsic system |Involuntary; autonomic n erves; hormones, | |Regulation of contraction |somatic nervous system. |regulation; also autonomic |local chemicals; stretch. | | | |nervous system controls; | | | | |hormones; stretch. | | | Slow to fast |Slow |Very slow | |Speed of contraction | | | | | |No |Yes |Yes, in single unit muscle | |Rhythmic contraction | | | | Task 5a The classification of muscles falls into four purposeful groups: prime movers (agonists), antagonists, synergists and fixators. A prime mover or agonist is a muscle that has the chief responsibility of producing an explicit undertaking, for instance the biceps brachii is the fleshy muscle of the anterior arm that is the agonist of elbow flexion. An antagonist is a muscle that opposes the movements of agonists, an active agonist will result in a stretched or relaxed antagonist; however, antagonists usually help to regulate movement of the agonist with a slight tightening to provide resistance to slow or stop movement as not to overshoot the mark. Agonists and antagonists are located opposite each other on the joint of which they act, antagonists can also work as agonists and one example of this is the biceps brachii causing flexion of the forearm that is antagonised by the triceps brachii, the agonist for forearm extension. In supplement to the agonists and antagonists, the majority of muscle movements also involve synergists, synergists work alongside agonists to add extra force to movements or they work to reduce detrimental movements that can arise when the agonists move. (Marieb Hoehn, 2010, p. 321) Task 5b |Elbow Flexion |Elbow Extension |Pronation |Supination | |Biceps brachii (Prime mover) |Triceps brachii (Prime mover) |Pronator teres |Biceps brachii | |Brachialis (Prime mover) |Anconeus |Pronator quadratus (Prime mover) |Supinator | |Pronator teres (Weak) | Brachioradialis | Task 5c Biceps brachii, Brachialis, Brachioradialis Task 5d Triceps brachii, Anconeus Task 5e Triceps brachii, Anconeus Task 5f Biceps brachii, Brachialis, Brachioradialis Task 6a Contraction refers to the activation of myosin cross bridges, these bridges are the force generating sites; when the tension is generated then contracting occurs through the cross bridges of the thin filaments, this force must surpass forces oppo sed to shortening; this then pulls filaments toward the m-line. When tension declines and the cross bridges inactivate, then contraction ends thus inducing relaxation in the muscle fibre. In the sliding filament model of contraction, thin filaments will slide past thick filaments, and as a result, the actin[6] and myosin[7] strands will overlap to a larger gradation. Relaxed muscle fibres only have thick and thin fibres overlapping at the tips of the a-bonds, stimulation of the muscles fibres by the nervous system activates the myosin heads of the thick filaments to clasp onto the myosin fastening position on the actin of the thin filaments, and this process begins sliding. [8] In the course of contraction, these cross bridge connections are forced/broken numerous times, the attachments act like miniscule ratchets in order to create pressure and thus impel the thin filaments further toward the sarcomeres centre. This contraction event occurs concurrently throughout all sarcomeres in a cell shortening the muscle cell, it should be noted as the thin filaments slide towards the centre; the z-disc to which they are attached to will be pulled toward the m-line. [9] In an overall look at contraction, the muscle cell contracts as do the i-bonds and the distance between consecutive z-discs is reduced and the h-zones vanish, moving the contiguous a-bonds closer together; however, they do not change in length. (Marieb Hoehn, 2010, p. 284) Task 6b Direct Phosphorylation The demand for ATP rises as we begin vigorous exercise, within a few contractions stored ATP is consumed, creatine phosphate is then used to egenerate ATP and this process is ongoing while the metabolic pathways acclimatize to the bodies demand for increased ATP. Pairing CP with ADP results in an almost instantaneous energy transfer, and a phosphate group to form ATP from the CP to ADP. Two to three times as much CP as ATP is stored in muscle cells, the CP-ADP feedback is incredibly efficient and the volume of ATP in muscle cells does not change by much during the preliminary contraction phase. Maximum muscle power can be provided for 14-16 seconds using stored CP and ATP, this is roughly long enough to invigorate muscle for a 100-metre surge; this reaction is reversible and CP resources are refilled during rest periods. [10] (Marieb Hoehn, 2010, pp. 298-99) Anaerobic Pathway More ATP is engendered by catabolism as stored ATP and CP are expended; this catabolism of glucose is through the blood or from glycogen stored in muscle, glycolysis is the opening phase of glucose breakdown, glycolysis occurs in both the presence and absence of oxygen; however, it does not use oxygen and is therefore anaerobic. Glucose is destroyed to form two pyruvates during glycolysis, this releases enough energy to form some ATP (two ATP per glucose); usually, pyruvate manufactured would then enter the mitochondria and reacting with oxygen would provide even more ATP using the aerobic pathway. Vigorous muscle contraction at about 70% causes the bulging muscles to compress blood vessels, thus impairing blood flow and oxygen delivery. During these anaerobic conditions, the majority of pyruvate produced is transformed into lactic acid, this process is referred to anaerobic glycolysis. Anaerobic glycolysis yields around 5% of the ATP produced via the aerobic pathway from each glucose molecule, however it produces ATP about 2. 5 times faster than the aerobic pathway. [11] (Marieb Hoehn, 2010, pp. 298-99) Aerobic Pathway Ninety-five percent of ATP used for muscle activity during moderate exercise and rest is produced via the aerobic respiration pathway. Occurring in the mitochondria, aerobic respiration requires oxygen and encompasses a series of chemical reactions. During these reactions, the links of fuel molecules are destroyed liberating energy for ATP production. Glucose is broken down utterly to yield water, CO2 and great quantities of ATP, diffusing out of muscle tissue into the blood; the lungs remove CO2. With the onset of exercise, glycogen stored in the muscles provides a large amount of the fuel, briefly, after this circulating glucose, pyruvate and free fatty acids are the main source of fuel, roughly 30 minutes after this fatty acids will be the main energy source. Aerobic glycolysis provides a great deal of ATP (32), but is slow due to its numerous steps; it also requires a constant supply of oxygen and nutrients to continue. [12] (Marieb Hoehn, 2010, pp. 298-99) [pic] References Marieb, E. N. Hoehn, K. , 2010. Bones and Skeletal Tissue. In A. Wagner, ed. Human Anatomy Physiology. 8th ed. San Francisco: Pearson International Ltd. pp. 185-86. Marieb, E. N. Hoehn, K. , 2010. Bones and Skeletal tissue. In A. Wagner, ed. Human Anatomy Physiology. 8th ed. San Francisco: Pearson International Ltd. pp. 199,216. Marieb, E. N. Hoehn, K. , 2010. Bones and Skeletal Tissue. In A. Wagner, ed. Human Anatomy Physiology. 8th ed. San Francisco: Pearson International Ltd. pp. 223,233,237. Marieb, E. N. Hoehn, K. , 2010. Covering, Support and Movement of the Body. In A. Wagner, ed. Human Anatomy and Physiology. 8th ed. San Francisco: Pearson International Ltd. p. 284. Marieb, E. N. Hoehn, K. , 2010. Covering, Support and Movement of the Body. In A. Wagner, ed. Human Anatomy Physiology. 8th ed. San Francisco: Pearson International Ltd. pp. 225-226,233,267. Marieb, E. N. Hoehn, K. , 2010. Muscles and Muscle Tissue. In A. Wagner, ed. Human Anatomy and Physiology. 8th ed. San Francisco: Pearson International Ltd. pp. 298-99. Marieb, E. N. Hoehn, K. , 2010. The Muscular System. In A. Wagner, ed. Human Anatomy Physiology. 8th ed. San Francisco: Pearson International Ltd. p. 321. Marieb, E. N. Hoehn, K. , 2010. The Vertebral Column. In A. Wagner, ed. Human Anatomy Physiology. 8th ed. San Francisco: Pearson International. pp. 217, 243-244. NHS , 2011. Osteoporosis ââ¬â Treatment. [Online] Available at: HYPERLINK ââ¬Å"http://www. nhs. uk/Conditions/Osteoporosis/Pages/Treatment. aspxâ⬠http://www. nhs. uk/Conditions/Osteoporosis/Pages/Treatment. aspx [Accessed 13 May 2011]. NHS, 2011. Vitamins and Minerals ââ¬â Calcium. [Online] Available at: HYPERLINK ââ¬Å"http://www. nhs. uk/Conditions/vitamins-minerals/Pages/Calcium. aspxâ⬠http://www. nhs. uk/Conditions/vitamins-minerals/Pages/Calcium. aspx [Accessed 13 May 2011]. Todd, J. A. Robinson, R. J. , 2003. Osteoporosis and Exercise. Postgrad Medical Journal, 4(79), pp. 320-23. USA. Gov, 2011. Vitamin D. [Online] Available at: HYPERLINK ââ¬Å"http://ods. od. nih. ov/factsheets/VitaminD-HealthProfessional/â⬠http://ods. od. nih. gov/factsheets/VitaminD-HealthProfessional/ [Accessed 13 May 2011]. Pictures/Figures http://samedical. blogspot. com/2010/07/contraction-of-skeletal-muscle. html (Figure 6. 1/6. 2/6. 3/6. 4/6. 5) http://i. acdn. us/image/A2868/286833/ 300_286833. jpg (Figure 7. 1) http://www. mindfiesta. com/images/article/Respiration_clip_image001. gif (Figure 7. 2) ââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬â [1] http://www. gpnotebook. co. uk/simplepage. cfm? ID=-1979318262linkID=32590cook=no [2] Per day of both supplements. [3] See figure 3. 1, pictures A B [4] See figure 3. 1, pictures C D [5] See figure 3. 1, pictures E, I F 6] See figure 6. 3 (Page 13) [7] See figure 6. 2 (Page 13) [8] See figure 6. 1 (Page 12) [9] See figure 6. 1 [10] See figure 7. 1 [11] See figure 7. 2 [12] See figure 7. 2 ââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬âââ¬â Monday, 22 April 2013 Figure 3. 1 Task 3b A. Skull (Fibrous) B. Ankle ââ¬â Tibiofibular/Distal (Synovial/Fibrous) C. First rib/Sternum (Cartilaginous) Hyaline Cartilage D. Vertebrae (Cartilaginous) Fibrocartilage E. Pubis (Cartilaginous) Fibrocartilage F. Scapula/Humerus (Synovial) G. Humerus/Ulna Radius (Synovial) Hyaline cartilage H. Intercar pal (Cartilaginous) Plane joint/Nonaxial A C F G D E H B Figure 6. 1 Figure 6. 3 Figure 6. 2 Figure 7. 2 Figure 7. 1 How to cite Skeletal, Muscular Articular Systems, Papers
Thursday, December 5, 2019
The 300 Spartans Was It A Reliable free essay sample
The 300 Spartans. Be It A Reliable Source Of Historical Information? Essay, Research Paper The movie The 300 Spartans is the narrative of the Battle of Thermopylai, where the 300 strong personal guard of King Leonidas defended a mountain base on balls at Thermopylai so that Xerxes of Persia couldn T conquer Greece. Equally far as detailing how the events at Thermopylai went, The 300 Spartans was an accurate movie. In existent life, Leonidas and his work forces held the Persians back for two yearss, after which, they were sold out by a local Greek named Ephialtes. In the film, Ephialtes is rejected by a Spartan adult females, which gives him the motive to take the Immortals through the abandoned caprine animal path. Whether this was really his ground for assisting Xerxes is irrelevant, as it likely isn T mentioned in any history books. It besides adds a little more involvement to the movie for those who saw it for grounds other than watching work forces hack into each other with blades. We will write a custom essay sample on The 300 Spartans Was It A Reliable or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page When intelligence of the Immortal s back door onslaught became evident, the Athenians were ordered to withdraw. Merely the Boiotians aided Leonidas and his work forces ( the existent Spartan ground forces were sent merely every bit far as the Isthmus of Corinth ) . This was included in the movie non merely because it was historically right, but besides because it made the out numbered side seem more heroic. The Boiotians were defeated foremost, so the King was killed in conflict. His now unemployed personal guard formed a protective circle around his cadaver, where they are eventually finished off with pointers. As a beginning of historical information, The 300 Spartans isn T every bit accurate as you might trust. The Spartans, in existent life, fought their conflicts i n the nude ( with the exclusion of a little sum of armour ) . In the movie, nevertheless, the soldiers are to the full clothed, as are the adult females back place ( they excessively wore few garments ) . This error is apprehensible, as no production company, now or so, would finance and let go of a mainstream film where half of the supernumeraries, every bit good as cardinal characters, are running about naked ( good fortune happening the histrions, excessively ) . Besides absent was the fact that the Spartan work forces were bi-sexual. Such a movie could be made presents, but at that place would still be an tremendous recoil against it from conservative groups. They could ve at least used Grecian histrions. The difference in disposition between the two rival leaders was excessively large to be realistic. Xerxes was shown to hold been the most black hearted adult male around, and even though he was a average individual, he likely wasn t every bit evil as he was made out to be. Leonidas had the opposite job of being excessively screaky clean, but that mistake was common in all of the films made in the 1960ss. Spartan outlook was exhibited magnificently. The discredited soldier would instead hold thrown himself from a drop than go forth his male monarch. At the terminal, Xerxes promised that if the staying warriors surrendered Leonidas organic structure, they would be spared. Of class, they declined, taking to decease by his side instead than return place defeated. In my sentiment, the Spartans would ve tested to take out every bit many Persians as possible before being killed, and non hold juste stood there to be shot at. In decision, The 300 Spartans portrayed the major events at the Battle of Thermopylai really good. Unfortunately, it wasn t a really dependable beginning of historic information.
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