HLTC22H3 Lecture : Chapter notes

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29 Jun 2011
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Chapter 5 aging of the skin and musculoskeletal system: the musculoskeletal (msk) and the skin provide the most obvious signs of aging. Basic anatomy and physiology: melanoctyes make melanin which helps protect the skin from damage like sun burn, langerhan cells make up an important part of the immune system. Age-related changes: changes in the hair follicles result in the graying and loss of hair. Wringles are due to the decrease in subcutaneous fat: the skin becomes more likely to bruise and tear and less likely to heal in older age. Disease-related processes: xerosis: dry, itchy, red, scaly skin. You need to keep it hydrated so in the winter, when you are inside and warm and dry all the time, it is not good for xerosis. Soborrheic keratosses: benign old-age spots that are found in older people. Skin cancer 3 types: basal-cell carcinoma: small fleshy bump usually on the head or neck.

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