A patient is hospitalized with muscle spasms caused by failure of back muscles to relax after contraction. Which of the following would be most likely to help?
A) Inject calcium into the muscle cell, because it is not being released from the sarcoplasmic reticulum.
B) Induce tropomyosin and troponin to bind to the myosin binding sites on actin.
C) Increase the amount of acetylcholine at the synapses between motor neurons and muscle cells.
D) Depolarize the motor neurons to send an action potential to the muscle cells.

Question

Quizplus · Accepted Answer

Inducing tropomyosin and troponin to bind to the myosin binding sites on actin would prevent myosin from binding to actin, thereby allowing the muscle to relax.

A Patient Is Hospitalized with Muscle Spasms Caused by Failure