Physiology A single contraction of skeletal muscle is most likely to be terminated by which of the following actions? A Closure of the postsynaptic nicotinic acetylcholine receptor B Removal of acetylcholine from the neuromuscular junction C Removal of Ca++ from the terminal of the motor neuron D Removal of sarcoplasmic Ca++ 💡 Explanation A single contraction of skeletal muscle is most likely to be terminated by which of the following actions? ✓ Correct Answer: D. Removal of sarcoplasmic Ca++