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Intro & Functions
Chapter 11 - A & P Lecture
| Question | Answer |
|---|---|
| what are the 2 main cell types in nervous tissue? | neurons & glial cells |
| what is a nerve? | a bundle of axons outside the brain and spinal cord |
| what are cranial nerves? | nerves that come from brain; there are 12 pair |
| what are spinal nerves? | nerves that come from spinal cord; there are 31 pairs |
| what is a ganglion? | group of neuron cell bodies outside brain & spinal cord |
| what is a plexus? | network of axons, sometimes cell bodies, outside of CNS |
| what are glial cells? | supportive cells in nervous system with lots of funcitons |
| what is the role of the nervous system in maintaining homeostasis? | regulates & coordinates activites to maintain balance |
| what does it mean that the nervous system receives sensory input? | monitors internal & external stimuli |
| what is meant by integrating information? | brain + spinal cord process sensory input then initiate responses |
| how does the nervous system control muscles & glands? | sends signals that regualte their activity |
| what role does the nervous system play in mental activity? | establishes and maintains consciousness, thinking, memory, and emotion |
| functions of the nervous system? | maintaining homeostasis, receiving sensory input, integrating info, controlling muscle & glands, establish + maintain mental activity |
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