Final answer:
The axon occupies the least amount of cell volume among dendrites, axons, and cell body.
Step-by-step explanation:
The axon occupies the least amount of cell volume among the given options: dendrites, axons, and cell body.
An axon is a long, slender projection of a neuron that carries electrical signals away from the cell body and towards other neurons or target cells. It is responsible for transmitting the electrical impulses generated by the neuron to the next cell in the pathway.
In contrast, dendrites receive the electrical signals from other neurons and transmit them towards the cell body, while the cell body (soma) contains the nucleus and organelles of the neuron.