Question

The role of the axon is to
A) Integrates signals from the dendrites
B) Release Neurotransmitter
C) Conduct the impulse to the synaptic terminal
D) Synthesize cellular components

Answer 1

Axon is also known as nerve fiber. These are the segments of neurons (also known as nerve cells) carrying impulses away from the cell body. These axons connect the nerve impulse to other neurons or gland cells or with muscles. The function of the axon is to transmit information to different neurons, muscles and glands.

Complete step-by-step answer:
A nerve cell or neuron characteristically consists of three parts, namely the cell body, several dendrites and one axon. The integration of incoming signals means to conclude whether incoming information should be passed along or not. This event occurs in the cell body and dendrites. The cell body of a nerve cell consists of the nucleus and other cell organelles.
As the nerve impulse travels along the axon and reaches its end, certain chemical messengers, also known as neurotransmitters are released. These neurotransmitters pass through the synapse occurring in between the axon terminal of the presynaptic neuron (sending neuron) and dendrite of the postsynaptic neuron(receiving neuron). This allows the transmission of nerve impulse from the pre synaptic neuron to the postsynaptic neuron.

So, the correct answer is option “C” that is the role of axon is to conduct the impulse to the synaptic terminal.

Note: An axon is an elongated, lean projection of a neuron or nerve cell which conducts electrical impulses, also called action potentials towards its synaptical terminals, away from the nerve cell body. Also, axons are covered by an insulating sheath (myelin sheath). This is referred to as nerve fibers.