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NEET2016ZoologyStructural Organisation in AnimalsActual

Smooth muscles are

Options

  1. AInvoluntary, fusiform, non-striated
  2. BVoluntary, multinucleate, cylindrical
  3. CInvoluntary, cylindrical, striated
  4. DVoluntary, spindle-shaped, uninucleate

Correct answer

A. Involuntary, fusiform, non-striated

Step-by-step solution

Smooth muscles are involuntary, fusiform, nonstriated muscles. Smooth muscle is present in the walls of hollow organs like the urinary bladder, uterus, stomach, intestines, 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.

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