Question

An axon is: (2 points)

a layer of fatty tissue that encases the fibers of many neurons

an antagonist that blocks neurotransmitter receptor sites

the extension of a neuron that carries messages away from the soma

the junction between a presynaptic and postsynaptic neuron

a cell that serves as the basic building block of the nervous system

Answer 1

C

Step-by-step explanation:

If you look up diagrams and parts of a nerve cell, it is there.

Hope this helps!

Answer 2

An axon is the extension of a neuron that carries messages away from the soma

Step-by-step explanation:

An axon is the segmented, slender, and long nerve fiber which is a projection of the neuron, the nerve cell.

An axon is the primary transmission line for electrical impulses. The main function of an axon is to conduct the electrical impulses or transmit the information away from the cell body (soma) of a nerve cell (neuron) to other neurons or the glands or muscles.

An axon varies in its length at different parts with the longest present in the sciatic nerve.