question_answer 41)

  Voluntary muscles are found in (a) alimentary canal         (b) limbs                              (c) iris of the eye              (d) bronchi of lungs

Answer:

  (b) Voluntary muscles are the muscles, which are under our complete control for, e.g., the working and movement of limbs. On the other hand involuntary muscles are controlled by hypothalarnus, i.e., they are regulated rhythmically, e.g., alimentary canal, iris of the eye and bronchi of lungs.