Figure 13 Different types of neuron. (a) With the cell body at the end of the axon. (b) With the cell body to the side of the axon. (c) With no processes. (d) With an insulating sheath of myelin around the axon, which speeds nerve conduction. (e) A small nerve network showing inputs (neurons 2, 3 and 4) to neuron 1, and its output to neuron 5.