Stimuli, internal and external are detected and lead to a response exam qs

Question 1

In the nerve pathway in the diagram, synapses ensure that nerve impulses only travel
towards the muscle fibre.
Explain how.

Answer 1

Neurotransmitter only made in / stored in / released from pre-synaptic neurone;
2. (Neuro)receptors only on the post-synaptic membrane;