Muscles are relaxed when..?

myosin is not bound to actin

myosin is bound to actin

cross bridges have formed

myosin has bent toward the center of the sarcomere

Respuesta :

Answer:

myosin is not bound to actin

Explanation:

When the muscle relaxes the verve stimulation stops and the calcium is then pumped back into the sarcoplasmic reticulum which causes a break in the link between actin and myosin. Actin and myosin, therefore, return to their unbound state causing the muscle to relax.

Answer: A

Explanation: