| A | B |
|---|
| Central Nervous System | Brain and Spinal Cord |
| Peripheral Nervous System | Nerves throughout the body |
| Neurons | Basic functional Unit of the nervous sytem |
| Neuroglia | Support the neurons |
| Dendrites | Recieve impulse on the neuron |
| Axon | Conducts nerve impulses toward another neuron |
| Myelin | White appearance |
| White Matter | Contains myelinated axons |
| Gray Matter | Contains large neuron cells |
| Schwann Cells | Specialized glial cells found outside the brain |
| Nodes of Ranvier | Gaps in the myelin sheath |
| Cranial Nerves | nerves of the PNS that originate at the brain |
| Spinal Nerves | nerves of the PNS that originate at the spinal cord |
| Afferent Nerves | Sensory Nerves |
| Efferent Nerves | Motor Nerves |
| Somatic | Conscious or voluntary control of the skeletal muscles |
| Autonomic | contols and coordinates the smooth muscle function |
| Resting Membrane Potential | Neuron that is not being stimulated |
| Depolarization | Sodium channels allow NA+ into the cell |
| Repolarization | Potssium channels allow K+ to flow out of the cell |
