Epithelial tissue provides a covering such as skin, the linings of the various passages inside the body.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. The main functions of epithelia are protection from the environment, coverage, secretion and excretion, absorption, and filtration.
Nerve tissue is made up of nerve cells (neurons) and is used to carry "messages" to and from various parts of the body. Theyre found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. ... The cells in nervous tissue that generate and conduct impulses are called neurons or nerve cells. These cells have three principal parts: the dendrites, the cell body, and one axon.
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