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17 Cards in this Set
- Front
- Back
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Functions of the Skin |
Insulation & cushioning for deeper body organs Protection from mechanical damage (cuts), chemical change, thermal change, UV radiation, & bacteria Regulate heat loss (capillaries/sweat glands) Helps to synthesize vitamin D Sensory receptors (temperature, pain, pressure) |
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Stratum Corneum |
20/30 cell layers thick (very) Cells are dead & filled with keratin |
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Stratum Lucidium |
Only present where skin is hairless & extra thick (soles of the feet, palms) |
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Stratum Granulosum |
Layer becomes flatter Cells will die as they move into the lucidum |
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Stratum Spinosum |
Skin cells move up from Basale & become flatter |
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Stratum Basale |
Actively dividing skin cells, millions of new cells daily |
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Anatomy of the Epidermis (order) |
Corneum Lucidum Granulosum Spinosum Basale *Crying Little Girls Spray Boogers* |
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1st Degree Burn |
Superficial (only affects the epidermis) Red, dry, & lacks blisters Long-term tissue damage can alter the color of the skin |
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2nd Degree Burn |
Extends through the entire epidermis & part of the underlying dermis Red, blistered, swelling |
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3rd Degree Burn |
Destroys the epidermis & underlying dermis Can damage muscles, tendons, & bones White/charred appearance All nerve endings have been destroyed (lack of feeling) |
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Sebaceous Glands |
Produces an oil (sebaceous) that keeps skin & hair soft |
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Sweat Glands |
Secretes sweat Sweat contains water, salt (sodium/chlorides), vitamin C, metabolic waste, lactic acid) |
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Nails |
Epidermal cells Non living cells Filled with keratin |
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Hair |
Formed from epithelial cells Mostly non living cells Mostly keratin |
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Squamous Cell Carcinoma |
Red, scaly bumps Most commonly found on the face Easily spread |
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Basal Cell Carcinoma |
Shiny, waxy bumps Most commonly found on the head, arms, legs, face Grows very slowly |
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Melanoma |
Large brown spot with irregular borders Melanocytes are responsible for producing skin color pigments Most commonly found on the head, neck, trunk |
