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Stages of regeneration of the skn, following an injury?
contraction occurs, granulation tissue is formed, cells of the stratum germinativum divide and migrate, a scab forms on the surface
In extensive wound, ___ divides producing mobile cells that invaid deeper areas of injury
the layer of skin that contains the blood vessels and nerves closest to the surface of the skin is the____________layer
___ layer of the skin the contains bundles of collagen fibers, protein elastin, and gives strength
know about the subcutaneous glands
Small glands in the skin that secrete oil into hair follicles and onto the body surface,this makes the hair greasy (oily) and also makes the body sweat and look oily.
Sebaceous and cibous gland
Sebaceous gland: microscopic glands in the skin that secrete an oily/waxy matter, called sebum. found in greatest abundance on the face and scalp, though they are distributed throughout all skin sites except the palms and soles.
know about melanin
Also called pigment, melanin is a substance that gives the skin and hair its natural color.
All of the following are true of perspiration Produced by merocrine sweat glands, except that it _____.
produces the body odor characteristic of "sweating"
the layer of the skin that provides protection against bacteria as well as chemical and mechanical injuries is the________
cyanosis is indicated by
blush coloration to the skin melanoma or interruptions of the dermal blood supply
How are epidermal ridges formed?
downward projections of the epidermis into the dermis between the dermal papillae. They also increase the friction and the surface area of the dermis
Water loss due to interstitial fluid penetration through the surface of the skin is termed _____ perspiration.
the layer of the epidermis that contains cells undergoing division is the ______
Charlie is badly burned in an accident. when he reaches the emergency room, the examining physician finds that he can remove entire hair follicles from charlies arm whe he gently pulls on a hair with his forceps. charlie is suffering from a(n)___burn.
47. wrinkling and sagging in old people is the result of ?
decline of protein elastin/ collagen fibers in the skin weakening
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