Question

Which of the following muscles do not get fatigued fast?

• A. Intestinal muscle
• B. Cardiac muscle
• C. Calf muscle
• D. Biceps

Answer 1

Answer: (B)

Cardiac muscle

The cells of cardiac muscles have a greater number of mitochondria than the cells present in other muscles. So, the cells of cardiac muscles get plenty of energy, produced by mitochondria. Mitochondria are responsible for the production of energy. Therefore, cardiac muscles do not get fatigued.

So, the correct answer is option B.