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