The passage of nerve impulse across a synapse is facilitated by the secretion of? by Sunday | May 14 | Biology WAEC | 0 comments A. acetylcholine B. thyroxin C. insulin D. progesterone Correct Answer: Option A A. acetylcholine Users Also Read These:The secretion of reproductive and growth hormone in…The part of the ear which contains nerve cells…Over-secretion of thyroxin is likely to lead to?Which of these is not detected by the nerve endings…Efficient distribution of goods in West Africa will…