Term
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Definition
-superficial
-composed of stratified keratin squamous epithelium
-30 to 50 cell layers |
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Term
|
Definition
-deep
-composed of CT ( fibroblasts, collagen, elastic fibers)
-blood vessels |
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Term
|
Definition
-loose CT and adipose tissue
-anchors skin to muscle
-shock absorber/insulator |
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Term
|
Definition
-protection
-thermoregulation
-absorption
-excretion
-synthesis
-sensation
-communication |
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Term
|
Definition
-physical-impermeable
-chemical-acidity, melanin
-biological-Langerhans cells and macrophages |
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Term
|
Definition
-body temp regulated by sweat glands and diameter of blood vessels
-hair/adipose tissue insulate |
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Term
|
Definition
-gases (CO2, O2)
-lipid soluble substances (vitamins)
-steroids
-plant resins, organic solvents, heavy metals |
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Term
|
Definition
| urea, salt, ammonia, uric acid |
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Term
|
Definition
| exposure to sunlight aids in production of vitamin D |
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Term
|
Definition
| contains receptors for touch, pain, temp |
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Term
|
Definition
| various emotions expressed through color changes |
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Term
|
Definition
-stratum germinativum (basale)
-stratum spinosum
-stratum granulosum
-stratum lucidum
-stratum corneum |
|
|
Term
| stratum germinativum(basale) |
|
Definition
-deepest layer
-single layer of cells
-undergo mitosis and gradually move to surface |
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Term
|
Definition
-several layers of squamous-like cells
-"prickle cells"
-attached by spine-like process
-keratin synthesis begins |
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Term
|
Definition
-cells contain dark granules
-abundant keratin
-cells begin to die |
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Term
|
Definition
-clear layer
-cells appear empty
-only found in thick skin |
|
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Term
|
Definition
-superficial layer
-dead, scale like keratinized cells |
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Term
|
Definition
-CT (elastin, collagen fibers)
-macrophages
-mast cells
-nerve fibers
-blood vessels
-sweat glands
-hair follicles
-sebaceous glands |
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Term
|
Definition
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Term
|
Definition
-dense regular CT
-many elastin collagenous fibers
-provide skin tone, strength, resiliency |
|
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Term
|
Definition
-supporting base
-contains dense network of blood vessels for diffusion of nutrients to epidermis |
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Term
|
Definition
| yellow, brown, black pigments protect against UV |
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Term
|
Definition
-yellow orange pigment
rich in vitamin A |
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Term
|
Definition
| iron containing pigment in RBC |
|
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Term
|
Definition
| bluish coloration due to poor oxygen supply |
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Term
|
Definition
| pale looking skin in anemia due to low hemoglobin |
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Term
|
Definition
-strength and resiliency caused by elastic and collagenous fibers of the dermis
-wrinkles/stretch marks |
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Term
|
Definition
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Term
|
Definition
-type of holocrine gland (rupture to release)
-all over body except palms/soles
-very numerous along base of hair
-produce sebum |
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Term
|
Definition
| -oily substance which lubricates the hair shaft |
|
|
Term
| secretion is stimulated by |
|
Definition
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Term
|
Definition
| inflammation of sebaceous glands |
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Term
|
Definition
-coiled, tubular with a duct which reaches the surface
-eccrine and apocine |
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Term
|
Definition
-most numerous
-produce sweat of water, salt, waste |
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Term
|
Definition
located in the axillary and anogenital regions
-secrete sweat and lipoproteins when acted upon by bacteria |
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Term
|
Definition
-hair
-nails
-sebaceous glands
-sweat glands
-mammary glands |
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