Multiple choice

The muscle which is immune to fatigue is

  1. unstripped muscle

  2. striped muscle

  3. cardiac muscle

  4. none

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cardiac muscle (heart) has unique properties - it's autorhythmic (self-exciting), richly supplied with mitochondria, and contracts continuously without fatigue. Unlike skeletal or smooth muscle, it never tires due to constant ATP production.

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