Relier Pairs Neuronal AnatomyVersion en ligne Know your neuron par Marilyn Bear 1 What is the function of the Axon in a nerve cell? 2 What are Neurofibril? 3 What is the Soma? 4 What is a Neuron? 5 What does the Rough Endoplasmic Reticulum (rER) do? 6 What is a Dendrite? 7 What is the purpose of Mitochondrion in a nerve cell? The cell body of a nerve. Produces Proteins. Fundamental units of the brain and nervous system. Responsible for receiving sensory input from the external world. Extends outward from the cell body,receives signals from axon terminals of other neurons. Fibers in the cytoplasm of a nerve axon. Produces ATP. Carries electrical impluses away to be receivednby other neurons.