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30 Cards in this Set
- Front
- Back
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Skin Layers
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Largest organ in the body.
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Epidermis
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Top layer of skin
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Skin
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Stratified Squamous, Lacks Blood Vessels & has Keratinization
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Keratin
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Tough protein, Hair & Nails
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Cytes
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cells
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Melanocytes
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Darker cells containing melanin. Gives you your skin color or pigment.
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Freckles
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Clusters of melanocytes.
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Moles
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Larger cluster of melanocytes. Don't want them to grow.
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Cherry Angiomas
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Cluster of capillaries. Get them when you get older.
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Melanin
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Protects you from UV light and gives you a tan as a way of protection.
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Dermis
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New cells are closest to epidermis. They push up and slough off.
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Flexible & Elastic Connective Tissue
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Connected tissue that holds the dermis & epidermis together.
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Muscle Fibers
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Causes skin to be able to move like when you change facial expressions.
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Blood Vessels
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Helps regulate your temperature.
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Hypodermis
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Areolar & Adipose Tissue. This is where you would get a shot from a hypodermic needle.
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Sebaceous Glands
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Oil glands
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Sebum
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Oil into hair fiber. Lubricates the keratin, conditions skin, located on face, back & chest. Activates at puberty.
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Apocrine
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Sweat gland, with hair follicles, responds to emotional stress, scent gland, numerous in armpit and groin.
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Eccrine
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Sweat gland, no hair follicles, regulates body temperature at 98.6 degrees Fahrenheit. Located on palms, soles, forehead, neck and back.
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Vasodilation
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Blood vessels dilate & expand turning skin color red/pink. Heat comes off from the dermal layer. Happens when you exercise, get embarrassed, or drink alcohol.
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Sweat
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99% H2O & 1% Electrolytes, Sodium & Chlorine. pH 4-6.8 acid. Can't evaporate when humid, which will keep body temp up without fluids.
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Vasoconstriction
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When cold blood vessels become smaller to keep heat in. Turns your skin a pale white color, Happens when scared or cold. Causes eccrine glands become inactive and involuntary shivering.
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Cyanosis
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Vasoconstriction it what causes this. Decreased oxygen, decreased body temp, heart failure and respiratory problems.
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Jaundice
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Skin turns yellow. Liver and gallbladder problems.
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1st Degree Burn
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Epidermis has no damage, no blisters or scaring. Superficial partial thickness.
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2nd Degree Burn
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Destroys dermis, causes blisters & possible scar tissue if you pop the blisters. Deep partial thickness.
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3rd Degree Burn
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Destroys epidermis, dermis & accessory organs. Skin will be red, black, white, crusty & gross. Full thickness.
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What happens when you age to your skin?
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Epidermis cell & melanocyte activity decreases. Sebaceous & Eccrine glands decrease. Blood supply to dermis, dermis & elastic fibers decrease causing wrinkles.
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Tretinoin
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Retinol A, Increases cell turnover in epidermis & improves blood supply to dermis.
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Botox or Botulisim
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Deadly bacteria injected to cause your skin to paralyze. Only lasts 6 months.
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