BODY TISSUE Flashcards
FOUR PRIMARY TYPES
-epithelial tissue
-connective tissue
-muscle tissue
-nervous tissue
FUNCTIONS
-protection
-filtration
-absorption
-secretion
EPITHELIUM CHARACTERISTICS
-cells fit closely together & often for sheets(many junctions!!!)
-lower EPITHELIUM rest on a basement membrane (remember diffusion from base to apical cells)
-avascular (apical cells)
-regenerate easily if well-nourished
-base membrane can replace apical cells
GLAND
-one or more cells responsible for secreting a particular product
ENDOCRINE GLAND
-ductless since secretions diffuse into blood vessels to target an elicit physiological response
-all secretions are hormones(ex-adrenaline)
EXOCRINE GLAND
-secretion empty through ducts
-can be blocked cause of ducts