Activation of a muscle contraction following release of acetylcholine?

Question

from the nerve impulse occurs because of the release of
sodium
calcium
potassium

Answer 1

Activation of MOST muscles contraction FOLLOWING release of acetylcholine from the nerve impulse occurs because of the release of CALCIUM.

As a short recall, first CALCIUM IONS activate acetylcholine. The acetylcholine then diffuses and binds to nicotinic receptors on the motor end plate and open the channels in the membrane for SODIUM and POTASSIUM.

Sodium rushes in while potassium rushes out. However, since SODIUM is more permeable, the muscle fibre membrane becomes more positively charged triggering an ACTION POTENTIAL which sweeps down the length of the fiber just as it does in an axon. On the other hand, the resting potential of the fiber is restored by an outflow of potassium ions.

Answer 2

So uh... I guess your in Dr. French's class, why don't you actually do the test yourself. You might actually become a decent vet by doing your OWN work.