Question

What among the following is/are the characteristics of muscles?

• A. Excitability
• B. Conductivity
• C. Contractility
• D. Both A and C

Answer 1

The correct option is D Both A and C

Muscles are excitable as they respond to a stimulus. Muscle cells bring about the movement of body parts by contraction and relaxation. The contraction of muscle cells moves the body part to which they are attached. When these contracted muscle cells relax, they expand and increase in length, and hence the body part comes back to its original position.

Thus the correct answer is option D.