Epithelial Tissue

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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.