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32 Cards in this Set
- Front
- Back
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Largest organ in the body |
Skin |
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Epidermis |
Outermost layer Consists of stratified squamous epithelial tissue. Contains no blood vessels, obtains oxygen and nutrients by diffusion from the dermal layer |
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Dermis |
Deeper layer, composed of connective tissue where hair follicles are embedded. Contains collagen fibers which helps strengthen the tissue, elastic fibers for elasticity and reticular fibers that bind the fibers together. |
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Papillae |
Finger like projections, extending upwards from the dermis. These projections interlock with downward waves, binding the two structures together |
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Hypodermis |
Subcutaneous tissue made of loose connective tissue and adipose tissue, it binds the skin to underlaying tissue. |
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Cyanosis |
Blue tint from deficiency of oxygen |
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Jaundice |
Yellow tint (whites of eyes) Impaired liver function |
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Bronzing |
Golden brown skin tone Deficiency of hormones |
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Albinism |
White Genetic lack of melanin |
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Erythema |
Red Increased blood flow, sunburn, exercise |
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Pallir |
Pale Decreased blood flow, cold temps, low blood pressure |
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Bruise (hematoma) |
Mark on skin (purple, bluish, black) Breakdown of clotted blood under skin |
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Clubbing |
Enlarged thumbs looking like drum sticks Oxygen deficiency, lung disease, |
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Flattened or concave nail beds |
Iron deficiency |
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Dark lines beneath nails |
Melanoma |
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White nails |
Liver disease (hepatitis) |
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Yellow, thick slow growing nails |
Lung disease (emphysema) |
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Pale nail beds |
Anemia |
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Fold of skin surrounding nail body |
Cuticle |
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Visible part of nail |
Nail body |
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Crescent shaped white area at base on nail |
Lunula |
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Nail bed |
Layer of epithelium under the nail (pink bc of rich blood supply) |
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Nail root |
Hidden underneath overlying tissue Nails grow about 1/25 (1mm) each week Toenails grown slower |
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Skin functions |
Protection from microorganisms, and underlying structures Barrier from water, prevents UV rays from sun and prevents dehydration by pumping fluids within Vitamin D production when in sun Sensory perception - contains nerves (senses) (regulate heat loss) Thermoregulation - shivering to warm up |
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Alopecia |
Excessive hair loss |
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Hair shaft |
Part of hair you can see |
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Hair follicles |
Lies inside epidermis (has rich blood supply) |
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Bulb |
In dermis - lowest part of the hair and is where hair growth occurs |
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Papilla |
Base of the hair, cluster of connective tissue and blood vessels that nourish each hair |
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Arrector pili |
Small bundle of smooth muscle, cold temperatures or emotions cause the muscle to contract which makes the hair become more upright |
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Subcutaneous injection |
45° (insulin) - deep |
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Intradermal injection |
15° - (top layer of skin) |
