Which of the following is true regarding unstriated muscles?

Each muscle fibre is long cylindrical and multinucleate

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Each muscle fibre is long spindle shaped and uninucleate

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The fibers have transverse striations

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All of the above

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Solution

The correct option is D Each muscle fibre is long spindle shaped and uninucleate
Unstriated muscles consists of muscle fibres which are long flattened and uninucleate because these muscles are smooth muscle fibres. They are present in the form of thin sheets and spindle shaped fibres wth only one nucleus in them.
So, the correct answer is 'Each muscle fibre is long spindle shaped and uninucleate'.

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