the neuro muscular junction or synapse

Question 1

enlarged end of nerve cell also called Synaptic Knob

Answer 1

presynaptic terminal

Question 2

part of the muscle cells sarcolemma

contains acetylcholine receptors which are sodium channels allow sodium into cell

Answer 2

postsynaptic terminal

Question 3

tiny gap space between the two terminals

Answer 3

synaptic cleft or gap