Concept explainers
Use the key to classify each of the following described tissue types into one of the four major tissue categories.
Key: (a) connective tissue (c) muscle
(b) epithelium (d) nervous tissue
_____(1) Tissue type composed largely of nonliving extracellular matrix; important in protection and support
_____(2) The tissue immediately responsible for body movement
_____(3) The tissue that enables us to be aware of the external environment and to react to it
_____(4) The tissue that lines body cavities and covers surfaces
To review:
The classification of four major type of tissues on the basis of their specific characters, into different categories.
Solution:
The classification of tissue types into major categories of the tissue:
Tissue type | Category |
(1) Tissue type is composed largely of a nonliving extracellular matrix; important in protection as well as support. | (a) Connective Tissue |
(2) The tissue immediately responsible for the body movement. | (c) Muscles |
(3) The tissue enables us to be aware of the external environment as well as to react to it. | (d) Nervous tissue |
(4.) The tissue that lines the body cavity and covers surfaces. | (b) Epithelium |
Explanation of Solution
The connective tissues are important in providing protection and support to the body. They are composed largely of the nonliving extracellular matrix.
The body movements occur due to the relaxation or contraction of the muscle fibers in the human body.
The nervous tissues are the tissues that are mainly responsible for receiving the stimulus from various sources and react according to them. Hence, they make the body of the individual aware of the external environment.
The epithelial cells are the cells that line up the body cavities and form the outer covering.
Thus it is concluded that connective tissue, muscles, nervous tissue and epithelium are four major categories of tissues that plays specific and vital role in the body as explained above.
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