Muscle fatigue is due to accumulation of

A sprinter feels cramps and pain in the thigh muscles after a run. This is due to accumulation of

Which of the following is responsible for muscle fatigue?

Accumulation of which one of the following in the muscles of sprinters leads to cramp?

Pulse is felt due to the rhythmic contraction and relaxation of the

Which one of the following is the structure of a cardiac muscle cell?