Mammalian Histology Flashcards
Function of SQUAMOUS cells
DIFFUSION, FILTRATION, SECRETION
PROTECTION
Function of CUBOIDAL & COLUMNAR cells
SECRETION & ABSORPTION
PROTECTION
Function of TRANSITIONAL cells
PROTECTION
DISTENSION of urinary structures.
Appearance of SQUAMOUS cells
FLATTENED
Appearance of CUBOIDAL cells
similar height depth width
Appearance of COLUMNAR cells
taller than wide
Appearance of TRANSITIONAL cells
change shape when stretched
SIMPLE epithelia
once cell thick
STRATIFIED epithelia
more than 1 cell thick, only bottom layer in contact w basement membrane
PSEUDOSTRATIFIED epithelia
appear >1 cell thick but all cells rest on basement membrane
GLANDULAR epithelium
aggregated epithelial cells clustered to perform specific secretory/excretory functions.
MEROCRINE glands
secretion passes via EXOCYTOSIS
HOLOCRINE glands
involves cell death, debris is part of secretion
APOCRINE glands
apical end pinched off
State the 4 epithelial membrane types
Mucous
serous
cutaneous
synovial