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Chapter 4

Stuctures and Functions

QuestionAnswer
Epidermis Thin outer layer of skin consisting of nonliving , keratinized cells. Provides, protection, secretion and absorbtion
Basement membrane bottom layer of skin that produces new epidermal cells
Dermis lies beneath the epidermis and is much thicker, made up of fibrous connective tissue containing elastin providing elasticity and collagen as strength.
subcutaneous layer beneath the dermis, contains fat tissue, deep blood vessels, nerves, lower part of hair follicles, elastin and collagen. Provides insulation for deeper stuctures
sudoriferous (sweat) glands an accessory structure; located throughout the body but more concentrated in feet and palms.
sebaceous glands base of the hair follicles all over the body; secrete an oily substance called sebum.
Sebum an oily substances that is secreted by the subaceous gland; when skin breaks, oil keeps bacteria from growing and is used as a lubricate.
laceration cut or tear in the flesh
abrasion an area where skin of mucous membranes are scraped away.
edema swelling
erythema redness
leukocytes white blood cells that attack bacterium; increases circulation that speeds up healing
melanocytes pigment producing skin cells called melanin that gives skin its color
Reflex a response that is so quick you cannot think about it; for protection
Hair part of the integumentary system; serves as a protective function, filters and protects from debris and dust, keep head warm, made up of protein called keratin.
Nails help protect ends of the fingers and toes; nail forms at the nail rootand made up of keratinized squamous epithelial cells
adip fat
lip tumor of fat
cutane skin
derm surgical repair of skin
dermat specialists in the study of the skin
cyt study of cells
eti study of cause
Created by: cohort24
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