Skin Histology and Physiology Study Guide Flashcards
(26 cards)
What rays cause sunburn and cancer?
UVB Rays
Healthy skin is slightly moist, soft, smooth and ______
somewhat acidic
What color is Eumelanin?
Dark brown to black
Estrogen from ______ are called phytoestrogens
plants
What is a part of the nail structure?
cuticle
Sebaceous glands are also know as ______
oil glands
What is a thin protective covering with many nerve endings?
Epidermis
What is the enzyme that stimulates melanocytes?
Tyrosinase
Barrier function prevents ________
skin irritation and intercellular transepidermal water loss (TEWL)
What is a protective cushion and energy storage for the body?
Subcutaneous layer (Hypodermis)
An esthetician that specialized in the beauty and health of the skin is ____
Histologist
How many cells shed a minute?
30,000
Damage to the barrier function of the skin causes what?
skin dehydration
Alpha Keratin is _____ and Beta Keratin _____
Soft/Hard
Another name for motor nerves
efferent
Ashley is hot and sweaty, what gland is causing this?
eccrine glands
Natural antioxidant in the skin helped to prevent damage from ______
free radicals
Does collagen and elastin production increase or decrease over time?
decrease
Apocrine glands
Coiled structures attached to hair follicles found in the underarm (axillary) and genital areas; secrete sweat.
Epidermal Growth Factors (EGF)
Stimulates cells to reproduce and heal
Hair papillae
Cone-shaped elevations at the base of the follicle that fit into the hair bulb; papillae are filled w/ tissue that contains the blood vessels and cells necessary for hair growth and follicle nourishment.
Telangiectasia
Capillaries that have been damaged and are now larger, or distended, blood vessels; commonly called couperose skin.
UVA
Aka aging rays; cause genetic damage and cell death
Melanocytes
Cells that produce skin pigment granules in the basal layer.
