THE TISSUE
A tissue is a collection of cells having similar origin structure and function there are number of cells in the body which carry out particular type of work and form a particular type of tissue there are various types of tissue in the human body the elementary tissues are epithelial connective muscular and nervous
Epithelial tissue:: it is the type of tissue that provides covering to other tissues it consists of cells that are situated very near to each other with the least intercellular space cells derive their nourishment from the nearby vascular tissue epithelial tissues help in protection absorption excretion and secretion they are classified according to the shape and arrangement of the cells
epithelial cells fuse with adjacent cells forming tight junction in certain organs e.g alimentary canal these tight junction behave as water proofing and prevent 7 digestive enzymes and micro organisms from the intestine into the blood stream
they are two types of epithelial tissue 1. simple epithelial tissue 2.compound epithelial tissue
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