Define 'nerve impulse'. Which structure in a neuron helps to conduct a nerve impulse:
$(i)$ towards the cell body?
$(ii)$ away from the cell body?

(N/A) nerve impulse is an electrical signal that travels along the membrane of a neuron,facilitating the transmission of information throughout the nervous system.
$(i)$ Dendrites are the branched structures that receive signals and conduct nerve impulses towards the cell body.
$(ii)$ The axon is a long,slender projection of a nerve cell that conducts nerve impulses away from the cell body towards other neurons or effector organs.