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15 Cards in this Set
- Front
- Back
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Three skin layerd |
Epidermis, dermis, subcutaneous |
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Keratinization |
Older skin cells harden |
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Epidermis layers |
Stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale |
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Layer only present in thick skin |
Stratum licidum |
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Dark hair has more _______ |
Eumelanin |
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Blonde hair has more ______ |
Phenimelanin |
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Sebaceous glands |
Contain groups if specialized epithelial cells Keep hair soft Connected to hair follicles |
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Sebum |
Fatty material and cellular debris |
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Mericrine Sweat glands |
Abundant sweat glands with odorless secretions Lower body temperature Originate in deep dermis or subcutaneous layers and open to surface on forehead, neck, and back |
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Apocrine sweat glands |
Less numerous with H secretions that develop odors Wet skin during pain, fear, emotional upset, and sexual arousal Near hair follicles in armpit and groin |
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Ceruminous glands |
Modified sweet glands Secrete earwax External acoustic meatus |
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Mammoth glandd |
Modified sweat glands Secrete milk Breasts |
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Conduction |
Heat moves from body directly into molecules of cooler objects in contact with its surface |
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Convection |
Continuous circulation of air over a warm surface |
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Evaporation |
The nervous system stimulates merocrine sweat glands to release sweat onto he surface of the skin |
