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Known as the dermis or true skin |
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Accessory Structures of the Skin |
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Hair, Nails Glands (sweat & oil) |
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Outside, top layer of the skin Thin Avascular |
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(2) - Layered
Located below the Dermis |
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Hardens the cells
Waterproofing for the skin |
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Called "true skin" Vascular Contains nerve tissue Hair & Nails are embedded here... |
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Found below the dermis Not part of the skin |
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Anchors the skin on
Insulates the body from extreme temp. |
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What is the function of the Subcutaneous Layer? |
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Secretes Melanin (pigment) MSH(Melanin Stimulating Hormone) Regulates the amount of skin color |
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Loss of melanin (pigment) Patches of white skin |
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Moles, Freckles & Birthmarks |
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Decreased amounts of oxygen in the blood Skin tone contains a blue hue |
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Blood vessels widen, get larger Vessels open up |
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Blood vessels get smaller Vessels close up |
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Birillium level is increased Skin tone has a yellow hue |
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Growth is influenced by sex hormones Estrogen & Testosterone |
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Muscle, surrounds the hair follicle |
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Found at the end of digital and toes Protects these structures from injury |
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Oily substance Secreted by oil glands |
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Babies are born with a protective covering resembling cream cheese |
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Sweat Glands Located in the dermis and subcutaneous |
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What are the two types of Sudoriferous Glands? |
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Associated with hair follicles Found in the axillary and genital areas |
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Most numerous sweat glands in the body
Located throughout the body in areas such as the forehead, upperlip palms of hands & soles of feet. |
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Eliminates harmful substances Retains water & electrolytes. Protects internal structures. Excretes small amounts of wastes (urea) Acts as a gland (Synthesizes & Excretes) Plays a sensory role, sensory receptors Regulates Body Temperature |
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What are the Functions of the Skin? |
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Heat is loss from a warm object to the cooler air surrounding the warm object. |
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Heat is loss from a warm body to a cooler object in contact w/the warm body |
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Heat is loss by air currents moving over the surface of the skin |
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Describe normal body temperature in degrees Farenheit & Celcius. |
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Only the epidermis is involved
Painful, Red & Slightly Swollen |
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Epidermis & Dermis is involved
Red, Painful, Blisters & Edema |
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Known as "full thickness"
Epidermis & Dermis are destroyed
PAINLESS
Sensory receptors are destroyed |
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