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21 terms

Integumentary System

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Organ
group of tissues that work together to perform closely related functions
Integumentary System
organ system that includes har, skin, and nails and protects the body from pathogens and maintains homeostasis
Epidermis
outer layer of skin
Dermis
the deep vascular inner layer of the skin
Subcutaneous Layer
connective and adipose tissue layer just under the dermis
Keratinization
older cells harden in this process, process by which the cells of epidermis become filled with keratin and move to the surface, where they are sloughed off
Melanin
a pigment that gives the skin its color
Cut
beneath the skin
Derm
inner layer of the skin
Epi
outer layer of the skin
Follic
tubelike depression in which a hair develops
Kerat
protein produced as epidermal cells die and harden
Melan
dark pigment produced by certain cells
Seb
Gland that secretes an oily substance
Hair Follicle
a small tubular cavity containing the root of a hair
Eumelanin
Melanin that give brown and black color to hair
Pheomelanin
melanin that provides natural hair colors from red and ginger to yellow/blond tones
Sebaceous Glands
secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis
Sweat Glands
glands of the skin that secrete small amounts of water to the skins surface
Eccrine Galnds
most abundent sweat glands, respond throught life to body temperature elevated by environmental heat or physical exercise.
Apocrine Glands
sweat glands in the pubic and underarm areas that secrete thicker sweat, that produce odor when come in contact with bacteria on the skin