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How tissue function in the human body?
A tissue is a group of cells, that are similar in structure, and is organized to perform one or more specific functions.
Tissues are divided into four different categories based on their structure and function, and they are:- 1. Epithelial tissue- It is a highly cellular tissue consists of tightly packed sheets of cells that cover the body surfaces, lines body cavities (small intestine), which act as barriers to the movement of fluids and potentially harmful microbes, and forms glands. Furthermore, specialized epithelial cells function as receptors for special senses such as smell, taste, hearing, and vision. 2. Connective tissue- It is the most abundant type of tissue in the body, which supports and connects other types of tissue. 3. Muscle tissue- It is both extensible and elastic, means it can be stretched and returned to its original shape and size which is essential for keeping the body upright and to move. It helps us in pushing food through digestive tracts, and also helps in pumping blood. 4. Nervous tissue- It is made up of highly specialized cells to transmit and integrates information through the central and peripheral nervous systems very rapidly across long distances.
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