Tawanda finishes a sprint and suffers great pain in her calf muscles. Her muscle cramps are most likely due to a temporary deficit of
A)actin.
B)myosin.
C)ATP.
D)ADP.

Question

Quizplus · Accepted Answer

Muscle cramps are typically caused by a temporary deficit of ATP, which is the energy source required for muscle contraction. Without ATP, the myosin heads cannot detach from the actin filaments, leading to involuntary muscle contractions and painful cramps.

Tawanda Finishes a Sprint and Suffers Great Pain in Her