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Skin
Skin
13
Biology
Graduate
12/02/2012

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Cards

Term
Keratinocytes - function
Definition
-friction, waterproofing
Term
Keratinocytes - formed form
Definition
ectoderm
Term
Keratinocytes produce
Definition
-keratin
-lamellar bodies
-Vit D
Term
cells in stratum basale
Definition
-cuboidal/columnar stem cells
-makes hemidesomsomes
Term
cells in Stratum Spinosum
Definition
-cells are reproducing and making keratin and lamellar bodies
Term
cells of Stratum Granulosum
Definition
-cells not dividing --> apotosis
-keratohyalin granules
Term
cells of Stratum Corneum
Definition
-cells flatten and die
-lamellar granules release lipids = waterproof
Term
filaggrin
Definition
-produced by Keratinocytes
-crosslink keratin to make it stronger
Term
Melanocytes origin
Definition
neural crest
Term
Melanocytes function
Definition
-produces melanin and releases them in melanosomes (vesicles)
Term
Melanin destination
Definition
-melanosomes are endocytosed by keratinocytes and released on the sunny side of the nucelus
Term
Merocrine (eccrine)
Definition
-sweat gland
-secretes watery sweat
-aids in cooling
-salt retention (aldosterone)
Term
Apocrine
Definition
-sweat gland at hair follicles
-watery sweat at axilla
-waxy sweat at eyelid and ear canal (cerumen)
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