Neuron Diagram:
A neuron is a nerve cell that transmits electrical impulses. Its main parts are dendrites, cell body, axon, myelin sheath, and axon terminals.

- Dendrites: Receive signals from other neurons
- Cell Body (Soma): Contains nucleus and organelles
- Axon: Carries impulses away from the cell body
- Myelin Sheath: Insulates the axon to speed up impulse transmission
- Axon Terminals: Pass impulses to the next neuron or effector