Question:
Characteristics of smooth muscle fibres are
Characteristics of smooth muscle fibres are
Updated On: Jun 12, 2024
- spindle-shaped, unbranched, nonstriated, uninucleate and involuntary
- spindle-shaped, unbranched, unstriped, multinucleate and involuntary
- cylindrical, unbranched, unstriped, multinucleate and involuntary
- cylindrical, unbranched, striated, multinucleate and voluntary.
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The Correct Option is A
Solution and Explanation
The smooth muscle consists of long, narrow unbranched spindle-shaped fibres. Each fibre contains a single oval nucleus in its thick middle part. The cross- striations are absent so that the fibres look smooth, hence the name nonstriated. Its contraction is not under the control of the animal, therefore, also called involuntary muscle.
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