Answer and Explanation:
The dendrite connects the axon of one neuron with the dendrite of another neuron to relay messages. Neurons transmit information to each other throught synaptic gaps. The cells release chemicals known as neurotransmitters to communicate with one another.
A synapse functions to allow transmission of nerve impulse from neurone to neurone. Acetylcholine is a substance that is used in impulse transmission. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the pre-synaptic membrane releasing acetylcholine. The transmitter substance makes the membrane permeable.