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Nervous System
12.2 - Nerves
| Question | Answer |
|---|---|
| What is a nerve? | a cable like bundle of parallel axons that are components of a peripheral nervous system |
| What are the three connective tissue wrappings a nerve has? | Epineurium, perineurium, and endonerium |
| What is epineurium? | a think layer of dense irregular connective tissue that encloses the entire nerve and provides support and protection |
| What is perineurium? | a layer of dense irregular connective tissue that wraps fascicles(bundles of axons). Supports blood vessles. |
| What is endoneurium? | A delicate layer of areolar connective tissue that separates and electrically insulates each axon. |
| What are cranial nerves? | Extend from brian |
| What are spinal nerves? | Extend from spinal cord |
| What are sensory nerves? | contain sensory neurons that relay info to CNS |
| What are motor nerves? | contain motor neurons that relay info from the CNS |
| What are mixed nerves? | contain both sensory and motor nerves |
Created by:
rpill
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