What are smooth muscles? State it's functions. (SPAM WILL BE REPORTED)
Answers
Explanation:
they are uninucleated i.e. with one nucleus , unbranched and spindle shaped cells.
they control involuntary actions. they change their shape in response to electrical impulses which are sent by brain in response of a stimuli , they do it with help of special proteins.
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Answer:
Smooth muscle is an involuntary non-striated muscle. It is divided into two subgroups; the single-unit (unitary) and multiunit smooth muscle. Within single-unit cells, the whole bundle or sheet contracts as a syncytium.
Smooth muscle cells are found in the walls of hollow organs, including the stomach, intestines, urinary bladder and uterus, and in the walls of passageways, such as the arteries and veins of the circulatory system, and the tracts of the respiratory, urinary, and reproductive systems. These cells are also present in the eyes and are able to change the size of the iris and alter the shape of the lens. In the skin, smooth muscle cells cause hair to stand erect in response to cold temperature or fear.