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18 Cards in this Set
- Front
- Back
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center of nervous system is the ....
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brain
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2 distinct parts of nervous system are
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central and peripheral
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primary role of the central and peripheral nervous systems together is
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behavior control
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PNS =
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peripheral nervous system
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2 parts of CNS
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brain and spinal cord
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is continuous with the brain, and it extends through the neural canal of the vertebral column posteriorly to
approximately the level of the second lumbar vertebra |
spinal cord
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at 2nd lumbar vertebra, the spinal cord tapers to a cone-shaped ending calaled the
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conus medullaris
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band of connective tissue which extends to coccyx; arising from conus medullaris
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filum terminale
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numerous nerves (collectively) which branch out from conus medullaris, and look like a horse's tail (because there are no many)
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cauda equina
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system which comprises 2 set of nerves
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peripheral nervous system (PNS)
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names of the 2 nerve sets of PNS
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cranial and spinal nerves
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the large majority of nerves are considered to be part of which nervous system
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PNS
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the 3rd portion of CNS
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autonomic nervous system (ANS)
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ANS =
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autonomic nervous system
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subdivision of both central and peripheral nervous systems based upon function
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ANS
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consists of nerves throughout the smooth muscles of the organs, blood vessels, cardiac muscles, and glands of the body
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ANS
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functions without conscious control
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ANS
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system which is a nerve of either CNS or PNS; it does not contain a separate set of nerves, but is rather a classification of the nerves which pertains to both other systems.
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ANS
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