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:Which of these is not detected by the nerve endings…Which of the following statements about nerve cells…The secretion of reproductive and growth hormone in…The transmission of impulses along a nerve fibre is…In a series R-L-C circuit at resonance; the voltages…