Epithelial Tissue
functions
They perform a variety of functions that include.
filtration
receipt of sensory information
absorption
excretion
protection
secretion
diffusion
classification
columnar
cuboidal
The tissue is classified as simple or stratified depending on the number of layers. Pseudostratified, ciliated, and transitional are some of the subclassifications. Various macromolecules are produced and released by glandular epithelial cells.
squamous
structural characteristics
connective tissue supports epithelial tissue
innervation - has nerves
Avascular means that it lacks blood vessels.
Every epithelial tissue is polar.
Cell junctions bind the cells together tightly.
Between cells, there is little or no intercellular space.
