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10 Cards in this Set
- Front
- Back
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Functions of the Nervous system
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-Detect changes & feel sensation
-Initiate appropriate responses to changes. -Organize information for immediate use & store for future use. |
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Electrochemical impulses
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Impulses make it possible to obtain info about our external/internal environment & do whatever is necessary to maintain homeostasis.
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Central Nervous system consists of:
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Brain & Spinal cord
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The brain is:
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the center of activity/integrates information/initiates responses.
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The spinal cord is:
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the column of nerve tissue, extends from medulla to 2nd lumbar vertebra.
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The peripheral nervous system
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relays info to/from the CNS
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PNS consists of how many cranial and spinal nerves?
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Cranial nerves - 12pairs
Spinal nerves - 31pairs |
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The Autonomic Nervous system:
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controls involuntary bodily functions.
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A group of nerve cells are called?
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neurons or nerve fibers
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A neuron is made up of:
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-cell body
-dendrites -axon |
