Epithelium and glands Flashcards
How are the epithelium, the basal lamina and the connective tissue related
The basal lamina is in contact with the epithelia, connecting them to the connective tissue
What is the basal lamina composed of
type 4 collagen, heparin sulfate, and proteoglycan
what are cytokeratins
intermediate filaments that make up the epithelia
simple squamous epithelia function to
specialized for secretion, osmosis, diffusion and filtration; maximize contact
what are simple cuboidal cells specialized for
secretion and absorption; shaped like a cube
How can you identify stratified squamous keratin epithelium
it has a layer of anucleate keratinized epithelium on top
where is stratified squamous non-keratinized epithelium found
vagina, oral cavity, esophagus and anal canal
What is the function of transitional epithelium
Stretching and contration
how does pseudostratified columnar epithelium differ from normal columnar epithelium
not all the cells reach the apical surface but they all are in contact with the basal membrane
exocrine glands
secrete into organs or tissues
endocrine glands
secrete into the blood stream
what are acinar glands shaped like
they are round, grape-like
what is merocrine secretion and what cells do it
secretion via exocytosis,. Goblet cells
what is apocrine secretion
secretion involving the decapitation of the apical portion of the gland
what is holocrine secretion and give an example
secretion of a cell’s entire contents following apoptosis. Sebaceous glands
