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Integumentary System - Chapter 7

Terms

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Stratum Germinativum
Innermost layer of the epidermis
Cutaneous Membrane
Skin
Integument
Organ system that consists of the skin and the accessory organs
Stratum Corneum
Outer most layer of the epidermis
Conduction
loss of heat energy as it is transferred from the warm body to a cooler object such as a cooling blanket
Convection
Loss of heat energy to the surrounding cooling air
Keratin
A protein found in the skin, hair, and nails.
Epidermis
Outer layer of the skin
Melanin
Pigment that is responsible for the color of skin and hair
Thermoregulation
Homeostatic regulation of body temperature by adjustments in the heat producing and heat losing mechanics
Apocrine Gland
One of the sudoriferous glands
Evaporation
Loss of heat as water changes from the liquid to the vapor or gas state
Ceruminous Gland
Modified sweat gland found in the external ear canal; secretes cerumen, or earwax
Sudoriferous Gland
Sweat gland
Dermis
Thick layer of dense connective tissue that lies under the epidermis of the skin
Radiation
Loss of heat as it leaves a warm object; such as the body to the surrounding cooler air
Sebaceous Gland
Exocrine gland located in the skin that secretes sebum
Subcutaneous Layer
Tissue beneath the dermis that contains fat cells
Eccrine Gland
Type of sweat gland that secretes a watery substance; important for regulating body temperature

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