Integumentary system
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| Epidermis | Skin; composed mostly of squamous cells
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| Stratum corneum | Outermost layer of skin
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| Keratin | A protein found in the stratum corneum
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| Stratum basale | Innermost layer of skin
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| Melanin | A dark pigment to the skin and hair
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| Dermis | Layer below the skin
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| Arrector pili | Muscle attatched to the root of the hair
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| Blood vessels | Bring blood to the skin and regulate body temperature
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| Nerve endings | Sensory receptors for pressure, temperature, and pain
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| Subcutaneous layer | Last layer of the integumentary system composed mostly of connective tissues and blood vessels
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| Integumentary system | Skin and it's appendages
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| Sebaceous glands | Glands located along the shaft of the hair, secrete an oily substance
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| Sudoriferous glands | Secrete sweat
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| Eccrine glands | Most numerous type of sweat gland
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| Apocrine glands | Larger sweat glands located in axillary and pubic regions
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| Mammary glands | Secrete milk
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| Ceruminous glands | Located in the ear canal, secrete wax
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| Hair | Consist of shaft, root and bulb, provide limited protection
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| Fingernails and toenails | Hardened layer of stratum corneum, helps protect and aids in picking up
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| What are the functions of the integumentary system? | Protection, temperature regulation, sensory reception, and cutaneous absorption
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| How does the integumentary system protect against? | Dehydration and invasion of pathogenic organisms
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| how does the integumentary system provide temperature regulation? | It produces and secretes sweat and diverts blood to the superficial layers to dissipate heat
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| How does the integumentary system provide sensory reception? | Through receptors that respond to pain, touch, pressure, and temperature.
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| What does the integumentary system absorb through cutaneous absorption? | Ultraviolet light, some oxygen, and some carbon dioxide
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| Integumentary system | Skin and appendages of the skin
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| Stratum germinatium | Stratum basale, cells produced here
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| Melanocytes | Produce melanin
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| Melanin | A brownish pigment that helps protect from UV light
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| Cyanosis | Bluish color to skin indicating lack of circulation
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| Albino | Genetic disorder in which melanocytes cannot produce melanin leaving skin characteristically white or void of color
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