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33 Cards in this Set
- Front
- Back
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The Integumentary system includes...
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skin, glands, hair, and nails.
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What are the three layers of the skin?
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1. epidermis - outer layer
2. dermis - inner layer 3. subcutaneous - underlying anchor layer |
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What is epidermis?
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Stratified squamous epithelium
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Which layer of epidermis is only in thick skin?
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Stratum lucidum
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Which epidermal layer comes off?
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The stratum corneum.
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Where are the melanocytes located?
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stratum basale of the epidermis.
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What's the pigment that they make?
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The activity of the melanocytes, however, is genetically controlled. A large number of melanin granules results in dark skin; fewer granules result in lighter skin.
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What's the protein that makes your skin waterproof?
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Keratin
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What epidermal layer is next to the dermis?
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The stratum basale
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What are fingerprints due to?
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The papillary layer is the upper layer of the dermis that extends into the epidermis which forms the fingerprints.
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What are the other names for the subcutaneous layer?
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Hypo dermis or superficial fascia
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Where are the sensory receptors?
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The dermis
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Which layer of the skin gives strength and elasticity?
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The dermis
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Where's the fat that's associated with the skin?
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the subcutaneous layer
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What happens when light skinned are exposed to sun light?
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Ultraviolet light increases melanocyte activity so that more melanin is produced and skin becomes darker or tanned.
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What's the goose bump muscle?
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arrector pili
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What's another name for cuticle?
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Eponychium
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What's the other name for sweat gland?
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Sudoriferous glands
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Which sweat gland are there more of?
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Merocrine
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Which sweat gland becomes active at puberty?
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Apocrine sweat glands
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What are the functions of the skin?
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1. protection
2. sensory reception 3. regulation of body temperature 4. vitamin D synthesis |
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How many layers to the epidermis?
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4 - 5
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What are the layers to the epidermis?
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Stratum...
1. basale 2. spinosim 3. granulosum 4. lucidum 5. corneum |
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What is dermis?
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Dense connective tissue
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What are the two layers to the dermis?
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1. papillary layer
2. reticular layer |
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What is the reticular layer?
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Deep layer that provides strength and resilience to the skin.
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Hair:
the shaft |
the part of the hair that is visible
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Hair:
the root |
portion of the hair that is below the surface of the skin
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Hair:
hair follicle |
houses the root of the hair. hair papilla cells around the area at the base of the follicle is the site for hair growth
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protection:
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covers the entire body and is waterproof
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sensory reception:
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the dermis contains sense receptors (nerves)
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regulation of the body temp:
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normal body temp is 98.6
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vitamin D synthesis:
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ultraviolet light
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