Answer:
b. axon— conducts nerve impulses
Explanation:
A neuron mostly consists of three structural parts: axon, dendrites and a cell body. Axon is a single long extension and is cylindrical in shape. An axon of a neuron serves as its output part and conducts the nerve impulse from one neuron to another neuron.
Axon may also conduct the nerve impulse from one neuron to some other tissues. Axon carries the nerve impulse away from the cell body of a neuron. An axon may exhibit branching along its length and the side branches of an axon are called axon collaterals.
