| A | B |
|---|
| C.N.S. | Central nervous system. Brain/Spinal cord |
| P.N.S. | Peripheral nervous system |
| Somatic nerves | Nerves-lead to skeletal muscle |
| Sensory neuron | Carry impulses to C.N.S |
| Motor neuron | Carry impulses from C.N.S. to effector |
| Autonomic nerves | Motor nerves-maintain homeostasis |
| Interneuron | Carry impulses within C.N.S |
| Receptor | Receiver of stimuli |
| Dendrites | Carry impulses to cell body |
| Axons | Carry impulses from dendrites |
| Myelin sheath | Fatty white covering over axon |
| Schwann cell | Form myelin sheath |
| Node of Ranvier | gaps between sections of myelin |
| Neurilemma | membrane surrounding axon |
| Reflex arc | Simlest nerve pathway |
