9th Class Science Tissues Question Bank 9th CBSE Science Tissues

  • question_answer
      What are involuntary muscles? Where are they found?

    Answer:

                      The muscles which do not move on our will are called involuntary muscles. The movement of food in the alimentary canal or the contraction and relaxation of blood vessels are involuntary movements. These muscles are also called smooth muscles. They are also found in the iris of the eye, in ureters and in bronchi of the lungs.


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