Muscle relaxation occurs when acetylcholine is cleaved from its receptors, calcium is pulled back inot the sarcoplasmic reticulum, the myosin is released from its binding site, and the muscle fiber returns to its resting length.
True
False
Which of the following statements is true of skeletal muscle?
Slow oxidative fibers have a low myoglobin content and are used for explosive muscle movements, like sprinting.
Anaerobic exercise depends on oxygen.
Fast glycolytic fibers are used for actions like weightlifting, fatigue very quickly, and have very little myoglobin content.
The speed of muscle contraction is not dependent on how fast the myosin heads split ATP.