Term
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Definition
| protection; temperature homeostasis; excretion; synthesis; non-verbal communication |
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Term
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Definition
| epidermis, dermis, hypodermis |
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Term
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Definition
| stratified squamous; subdivided into 5 layers (corneum, lucidum, granulosum, spinosum, basale) replaces itself every 35-45 days; cells of epidermis: stem cells, keratinocytes, melanocytes, Merkel cells, Langerhans cells (immune cells) |
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Term
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Definition
| strong, flexible connective tissue; collagen, elastic, and reticular fibers; rich in nerves, vessels, and receptors; hair follicles and sweat glands |
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Term
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Definition
| mainly fatty tissue; good insulator; infants and elderly have less making them more sensitive to cold |
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Term
| hair covers entire body except: |
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Definition
| palms, soles, nipples, and parts of external genitalia |
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Term
| humans are born with as many ______ as they will ever have. |
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Definition
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Term
| hair is the _____ growing cells in the body |
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Definition
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Term
| what are the 4 types of skin glands? |
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Definition
| sebaceous glands (hair follicles), sweat glands (eccrine: cover entire body; apocrine: genitals and armpits) mammary, ceruminous |
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Term
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Definition
| occurs over time in everyone; atrophy of dermal tissues and vascularity; decreased protein protection; shrinkage of sebaceous glands (dryness); fine lines, benign growths, dryness |
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Term
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Definition
| from UV light; causes hyperplasia (increase in production/number of cells) and hypertrophy (increase is size of cell); deterioration of collagen and elastin; atypical cells in the basal layer and melanocytes (abnormal pigmentation); dilated blood vessels (telangiectasia) actinic changes (dysplasia); skin cancers |
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