Term
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Definition
| made up of the skin and all associated structures: glands, hair, and nails |
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Term
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Definition
| largest organ, 7 % of body weight |
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Term
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Definition
protect against infection, chemicals, mild physical assault, dehydration.
regulation of body temp
collection of sensory info |
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Term
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Definition
| epidermis, dermis, and hypodermis |
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Term
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Definition
| superficial region (epithelial tissue) |
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Term
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Definition
| middle region (connective tissue) |
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Term
| hypodermis (superficial fascia) |
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Definition
deepest region. subcutaneous layer deep to skin(not technically part of skin).
mostly adipose tissue. |
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Term
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Definition
| produce fibrous protein keratin (vast majority) |
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Term
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Definition
10-25% in lower epidermis
produce pigment melanin (skin color) |
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Term
| epidermal dendritic (langerhans) cells |
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Definition
| macrophages that help activate immune system |
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Term
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Definition
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Term
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Definition
| most superficial layer; 20-30 layers of dead cells (keratinocytes) |
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Term
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Definition
| 3-5 layers of flattened cells (keratinocytes), organelles deteriorating |
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Term
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Definition
| several layers of keratinocytes unified by desmosomes, abundant melanin and dendritic cells |
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Term
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Definition
| deepest epidermal layer; one row of actively mitotic stem cells; occasionally melanocytes and epidermal dendritic cells |
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