what is epithelial tissue ? explain? explain its various types
Answers
Answer:
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
Epithelial cells are cells that come from surfaces of your body, such as your skin, blood vessels, urinary tract, or organs. They serve as a barrier between the inside and outside of your body, and protect it from viruses. A small number of epithelial cells in your urine is normal.
Explanation:
the covering or protective tissues in the animal body are epithelial tissue. The skin,the lining alveoli and kidney tubules are made of epithelial tissue. different types of epithelial tissues are
squamous,cuboidal,columnar (ciliated),stratified squamous
Squamous epithelial cells are extremely thin and fat.
cuboidal epithelial forms the lining of kidney tubules and ducts of salivary glands
columnar epithelial tissue has cilia,which are hair like projections on the outer surface of the epithelial cells.
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