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University of Toronto Scarborough
Health Studies
Anna Walsh

HLTB01H3Y: Health, Aging and the Life Cycle Department of Health Studies University of Toronto at Scarborough Summer 2010 Instructor: Anna Walsh. Term: Summer 2010 Mondays 10 a.m.-12 p.m. Lecture Room: SW 319. A&G: Chapter 5 - Aging of the Skin and Musculoskeletal System Midterm exam questions - All mc questions - Uses case studies in exam > gives you a story, and figure out the answer based on the story - Has true and false questions - May be statements and have to pick out the false one and indicate why it is false - Includes: lectures, videos, current events, tutorials, not be tested on the joke of the week - 50 questions, 2 points per questions, 2 hrs to complete the exam N The purpose of this chapter is to provide an anatomical overview of these systems, present normal age changes, and describe disease processes. - We look at peoples outwards appearance, and have a general impression of someones age just by looking at them - Facial appearance gives us an idea of how old someone is - We age internally and externally Basic Anatomy and Physiology N The skin, or integumentary system, has several major functions. It is the front line of defence against harmful environmental influences and is an important part of our immunological and endocrine systems. o Largest organ of the body o Critical in temperature control, helps in homeostasis (keeping your body in balance) o There are sensory nerves in the skin, and it allows us to monitor our environment (ex. reason we know stove is hot is because we can feelsense if its on or not) o For people suffering from neurological (brainnerve) conditions, they can have a dangerous accident because hey dont have the feedback that we take for granted N Epidermis: outermost layer o Kerotonocytes: serving the purpose of protecting the skin from outside harm and help it heal o Melanocytes: make up 2% of cells in epidermis, produce melanin that give colour to the skin o When exposed to the sun, results in increase in melanin production 1 www.notesolution.com
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