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Arrector Pili Smooth muscles surrounding each follicle
Dermis Layer of skin that does not continually shed and regenerate
Langer's Cleavage Lines collagen fibers in the dermis arranging in different patterns over the body
Stretch Marks elastic fibers in the dermis are stretched too much and will weaken or tear
Squamous Cell Carcinoma in epidermis areas that were exposed to a lot of sunlight.
Basal Cell Carcinoma Most common Skin Cancer
Malignant Melanoma Most deadly of all skin cancers
Malignant Melanoma skin cancer that can start from a pigmented mole that spreads
ABCD Rule characteristics identified when checking moles
Moh's Surgery technique used to remove skin cancer
Melanocytes cells containing melanin
Tyrosine amino acid converted to melanin
Tyronsinase Enzyme used to regulate melanin production
Albinism genetic defect, tyrosinase missing from birth
Melasma Pregnancy Mask
Cyanotic Blue color due to deoxygenated blood
Vitaligo stop of melanin production due to an injury by a virus or immune cell
Surface Film Composed of Sweat, Oil, Epithelial Cells
Sweat Composed of salt, uric acid, ammonia, urea
UV Radiation Stimulates the production of Vitamin D
Cholecalciferol converted to Vitamin D
Burns Injury or death of skin cells due to heat, UV radiation, electricity, or chemicals
First Degree Burn Burn - minor discomfort, no blistering, minimal tissue damage
Second Degree Burn Burn - Injury to the deeper layers of the epidermis and the upper layer of the dermis, Blisters, severe pain
Third Degree Burn Burn- Destruction of the epidermis and dermis, Tissue death beyond the glands and hair follicles
Lanugo fine and soft hair found on the fetus
Vellus "second set of hair" stronger, fine, and less pigmented
Terminal hair hair that replaced vellus during puberty
Sebum Oil, secreted by sebaceous glands
Lanula crescent shaped white area of the nails, "little moon"
Onycholysis separation of the nail bed caused by trauma or fungus
Sweat Glands Eccrine and Apocrine
Eccrine most common sweat glands
Apocrine sweat glands found in the armpit, areola of the breast, pigmented skin around the anus
Comedo inflamed plug
Cerumen ear wax