4.2 Epithelial tissue and more!
이 집합의 용어 (9)
Layers of cells that cover internal or external surfaces
Epithelia
Composed of fluid secreting cells derived from epithelia
Cells that produce exocrine or endocrine secretions.
Glands
Without blood vessels
Avascular
What are the four essential functions Epithelia performs?
Provide physical protection
Control permeability
Provide sensation
Produce specialized secretions
Secretions are discharged onto the surface of the epithelium
Exocrine
Secretions are released into the surrounding tissue (interstitial) fluid and blood
Endocrine
More specialized attachment sites that a tech a cell to another cell or to extracellular material
Cell junctions
Name the three common cell junctions
Tight
Gap
Demosomes
A layer of filament and fibers that attach an epithelium to the underlying connective tissue
Basement membrane