Which of the following tissues has a single nucleus, tapers at both ends and shows involuntary movements?
A
Striated muscle
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B
Smooth muscle
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C
Cardiac muscle
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D
Skeletal muscle
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Solution
The correct option is A Smooth muscle Smooth muscle fibers are nonstriated, spindle-shaped and have 1 nucleus per cell. Constriction of smooth muscle occurs involuntarily as it is under autonomic nervous control. Contractions of smooth muscle move food through the digestive tracts and push blood through the blood vessels. Thus the correct answer is option B.