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Epithelium Tissue HB

Epithelium Tissue

QuestionAnswer
Epithelial tissue functions: -protection -absorption -filtration -secretion
Epithelial tissue the lining tissue that forms the boundary between our body and the external environment
Epithelial tissue is classified by the... -number of layers -shape of the cells
How many layers do simple epithelial tissues have? one
How many layers do stratified epithelial tissues have? more than one
Pseudostratified epithelium one cell layer, some cells not tall enough to reach from one side to the other.
Three shapes of epithelial cells squamous, cuboidal, columnar
Function of simple squamous epithelium rapid diffusion of materials
Where is simple squamous epithelium found? blood vessels and lungs
Function of simple cuboidal epithelium secretion and absorption of substances
Where is simple cuboidal epithelium found? tissues of the kidney
Function of simple columnar epithelium secretion of mucus for protection and absorption of substances.
Where is simple columnar epithelium found? lining of the digestive tract
Stratified squamous epithelium thick layers of squamous cells
Where are stratified squamous epithelium found? epidermal layers of the skin
stratified cuboidal epithelium -more than one layer of cuboidal cells -rare in the body
Where is stratified cuboidal epithelium found? salivary and mammary glands
Stratified columnar epithelium -free surface is lined with columnar cells -rare in the body
Where is stratified columnar epithelium found? larynx and male urethra
Where is pseudo-stratified epithelium found? upper respiratory tract
transitional epithelium the free surface cells of transitional epithelium vary in appearance based on the stretching of the tissue
Where is transitional epithelium found? lining of urinary bladder
Gland made of a group of cells that secrete a fluid substance
Exocrine glands secrete substances outward through a duct
Endocrine glands ductless glands that secrete hormones though the bloodstream
Merocrine gland cells excrete products via exocytosis
Mero = part
Examples of merocrine glands sweat glands
Apocrine gland a portion of cell pinches off with secreted product
Apo = tip
Examples of apocrine glands mammary glands
Holocrine gland cells rupture and spill products into duct
Hol = whole
Examples of holocrine glands sebaceous (oil) glands
Created by: LFeldmann
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