Physiology Which of the following events happens when a nerve impulse arrives at the Neuromuscular Junction: A Release of Calcium from the Sarcoplasmic Reticulum B Acetylcholine binds to receptors on the postsynaptic sarcolemmal membrane C Acetylcholine binds to receptors on the postsynaptic sarcolemmal membrane D Efflux of calcium through synaptic vesicles into the synaptic cleft 💡 Explanation Which of the following events happens when a nerve impulse arrives at the Neuromuscular Junction: ✓ Correct Answer: B. Acetylcholine binds to receptors on the postsynaptic sarcolemmal membrane