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SSCT Intro to A&P C8
SSCT Chapter Anatomy & Physiology Chapter 8 Nervous System
| Question | Answer |
|---|---|
| CNS | Central Nervous System |
| Central Nervous System | brain & spinal cord |
| PNS | Peripheral Nervous System |
| Peripheral Nervous System | all nerves |
| ANS | Autonomic Nervous System |
| Dendrites | conduct impulses to cell body of neuron |
| Axon | conducts impulses away from cell body of neuron |
| Sensory Neurons | conduct impulses to the spinal cord and brain |
| Motor Neurons | conduct impulses away from brin and spinal cord to muscles and glands |
| interneurons | conduct impulses from sensory neurons to motor neurons |
| Astocytes | star-shaped cells that anchor small blood vessels to neurons - blood-brain-barrier (BBB) associated with certain neurotransmitters |
| Microglia | small cells that move in inflamed brain tissue carrying on phagocytes - repair damage |
| oligodendrocytes | form myelin sheaths on axons in the CNS |
| Schwann cells | form myelin sheaths of axons in the PNS |
| White matter | tissue composed primarily of myelinated axons (nerves or tracts) |
| Gray Matter | tissue composed primarily of cell bodies and unmyelinated fibers |
| Endoneurium | surrounds individual fibers within a nerve |
| Perineurium | surrounds a group (fascicle) of nerve fibers |
| Epineurium | surrounds the entire nerve |