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47 Cards in this Set

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  • Back
simple squamous epithelium that lines blood and lymphatic vessels
endothelium
capillaries consist of what type of epithelium?
endothelium
simple squamous epithelium that lines major body cavities and covers the free outside surfaces of organs
mesothelium
what type of epithelium is skin?
stratified squamous keratinized
stratified cells that vary in form with functional state of organ
transitional epithelium
relaxed state of bladder epithelium
stratified columnar or stratified cuboidal
stretched state of bladder epithelium
stratified squamous
cells that change shape in response to environmental stimuli
metaplasia
sheet where all epithelia rest
composed of 2 layers
basement membrane
reticular lamina
type III collagen
produced by fibroblasts
continuous with underlying connective tissue, can be present in places like renal glomerulus
basal lamina
type IV collagen
produced by epithelium
basal surface of epithelial cells are attached by binding sites for GAGs such as laminin and heparin sulfate
length of motile processes of cilia
~10µm long
type of arrangement of cilia in microtubules
9 + 2 arrangement
Coordinated movements of ______ help luminal transport of materials like mucus like in the trachea
cilia
motility of microvilli
non-motile
characteristics of microvilli
~ 1µm, absorptive, have actin core, striated border of intestinal epithelium, brush border of kidney
ultrastructurally identical to microvilli
stereocilia
location of stereocilia
epididymis
intercellular mechanical attachment (spot)
desmosome
intercellular mechanical attachment (belt)
zonula adherens
seen as darkly staining dots or lines near apical surface of adjoining epithelial cells in intestine
terminal bar apparatus
glad that secretes onto epithelial surface or into duct
exocrine gland
goblet cells in epithelium of intestine or respiratory tract are what type of gland?
exocrine
example of serous acini
pancreas
serous acini are what type of cells?
pyramidal
shape of nucleus of serous acini
spherical
secretions of serous acini
proteinaceous thin, watery, and has enzymes
swollen mucous cells have forced out serous cells leaving small remnants of cytoplasm between mucous cells; artifact of routine immersion fixation
serous demilune
squamous
flattened scale-like cells (usually have flattened nucleus)
cuboidal cells
cells as tall as they are wide ("cube" with round nucleus)
columnar
cells taller by 2x than they are wide (nucleus oval, parallel to long axis of cell)
sheets of sensory receptor cells, such as the olfactory epithelium and the retina
neuroepithelium
epithelium that gives rise to spermatazoa
germinal epithelium
what types of glands are salivary glands and the exocrine portion of the pancreas?
multicellular exocrine
grapelike cluster
acinus
modified epithelial cells specialized for contraction
myoepithelium
secretions released via exocytosis
merocrine secretions
what type of glands secrete in a merocrine fashion?
common sweat glands or eccrine
secretion where large droplets of product are released from the apical surface of the cell and membrane is pinched off
apocrine secretion
example of apocrine secretion
lipid portion of milk
type of secretion where the whole cell is secreted or destroyed in the process of secretion
holocrine
example of holocrine secretion
sebaccous gland
secrete hormones directly into bloodstream
endocrine glands
cells that contain secretory granules in their apical cytoplasm and discharge materials directly onto surface of epithelium
goblet cells
cluster of secreting cells that discharge into a duct
acinous
cells that contain secretory granules in their apical cytoplasm and discharge materials directly onto surface of epithelium
goblet cells
cluster of secreting cells that discharge into a duct
acinous