$ATP$ binding site is located on the

Arrange the following steps of muscle relaxation in the correct chronological sequence:
$I.$ $Ca^{2+}$ ions are pumped back to the sarcoplasmic reticulum.
$II.$ $Z$-lines return to their original position.
$III.$ Masking of actin filaments occurs.
$IV.$ Relaxation of muscles.

Identify the correct labels for the parts of the myosin monomer shown in the diagram.

Which one of the following types of muscle fibers will be the first one to undergo fatigue?

Muscle fatigue occurs due to the accumulation of:

In which of the following muscle components are actin-binding sites present?