Physiology All of the following statements regarding activity at the neuromuscular junction are true except: A Action potentials on the alpha motor neuron release acetylcholine (Ach) from the axon terminal B Ach stimulates nicotinic cholinergic receptors on the muscle endplate C Cholinergic receptors on the muscle endplate are cation channels D Alpha motor neurons excite, and Renshaw cells inhibit, the muscle endplate 💡 Explanation All of the following statements regarding activity at the neuromuscular junction are true except: ✓ Correct Answer: B. Ach stimulates nicotinic cholinergic receptors on the muscle endplate