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Smooth muscles are...

Smooth muscles are

A

involuatary, fusiform, non-triated

B

voluntary, multinucleate, cylinderqinvluntary, cylinderical, striated

C

Involuntary, cyinderical, striated

D

voluntary, spindle-shaped, uninucleate

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Read the following statements carefully and select the correct ones. Cardiac fibres are branched with one or more nuclei. (ii) Smooth muscles are unbranched and cylindrical. (iii) Skeletal muscle can be branched or unbranched. (iv) Smooth muscle are non-striated.

    A
    Only (IV)
    B
    (ii) and (iii)
    C
    (iii) and (iv)
    D
    only (iii)

  • The type of muscle fibre present in the wall of alimenatry canal is (I)Cardiac fibres are branched with one or more nuclei. (II) smooth mucles are unbranched and cylindrical. (III) Skeletal muscles can be branched or unbranched. (IV) Smooth muscles are non-striated.

    A
    Smooth muscle fibre
    B
    striped muscle fibre
    C
    cardiac muscle fibre
    D
    both (a) and (b)

  • Assertion. Motor nerve fibres that supply striped muscle and parasympathetic nerve fibrs which innervate smooth muscle are cholinergic . Reason. On stimulation, they secrete acetylcholine from their ends into the synpatic cleft.

    A
    If both A and R are true and R is the correct explanation of A.
    B
    If both A and R are true and R is not the correct explanation of A.
    C
    If A is true but R is false.
    D
    If both A and R are false.

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