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Charla Chapt5 Skin

Integumentary Chapt. 5

Outer major layer of skin epidermis
Layer of skin containing blood vessels, and many skin structures dermis
Layer of skin made of irregular fibrous connective tissue dermis Dermis
Layer of skin made of stratified squamous epithelium epidermis
Smooth muscle attache to each hair fiber arrector pili
Responsible for goosebumps arrector pili
secretes sweat in stressful situations apocrine gland
Sweat glands found in axillae and genitals apocrine
Sweat glands found all over body eccrine
Sweat glands used for evaporative cooling eccrine
Cells that produce color for skin melanocytes
Substance that add color to skin and hair melanin
waterproof protein that prevents dehydration keratin
receptors for environments effect on the skin encapsulated nerve ending
outermost layer of epidermis with many layers of dead cells stratum corneum
Means layer stratum
fibers that provide strength to skin collagen
fibers in skin that provides flexibility elastin
Cells that produce collagen and elastin fibroblasts
receptors for pain free nerve endings
secretion to keep eardrum pliable cerumen
secretion to keep skin pliable sebum
lipid substance we call oil sebum
structure that produces oil for skin sebaceous gland
mechanism of heat loss from the skin depends on this process evaporative cooling from sweat
layers of epidermis separate and cause this blister
skin thickens due to increased pressure callus
What stimulates increased melanin production UV radiation
These structures detect pressure, cold and heat encapsulated nerve endings
blood vessels narrow to keep in heat vasoconstriction
blood vessels expand to give off hear vasodilation
The layer of epidermis that prevents entry of pathogens stratum corneum
Layer of epidermis with keratinocytes and melanocytes stratum corneum
Layer of epidermis that undergoes mitosis stratum germinativum
Process of water evaporating and taking extra heat energy with it evaporative cooling
Describe process used to produce vitamin D cholesterol in skin receives UV radiation to be converted into vitamin D
Purpose of vitamin D allows kidneys to make hormone that instructs calcium to enter the bones
Effect of heat on blood vessels vasodilation
effect of cold on blood vessels vasoconstriction
effect of stress on blood vessels vasodilation in extremeties vasoconstriction in body core
glands that produce sweat sudoriferous
glands that produce oil for skin sebaceous
glands that produce ear wax ceruminous glands
uneven junction between epidermis and dermis papillary layer
First layer containing vascular elements (capillaries) papillary
meaning of avascular not vascular - no blood vessels
small arteries arterioles
small veins venules
connects dermis to underlying tissue (often muscle) subcutaneous
connects arteries to veins capillaries
loss of body fluids dehydration
Created by: charla.cornwell2



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