CNS
Terms
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Ascending tracts (white matter) are what
- sensory and from sensory receprots to CNS
- brain stem has what
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midbrain, pons and medulla oblongata
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cauda equina
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nerve roots interior to cord tip
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central canal through grey commissure
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inner gray matter
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CNS brain structures
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cerebrum, diencephalon, brainstem, cerebellum
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conus medullaris
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inferior tip of spinal cord
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CT membrans between bone and CNS
- Meninges
- descending tracts (white matter) are what
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motor, from CNS to glands or muscles
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diencephalon has what
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epithalamus, thalamus and hypothalamus and enclosed by the cerebrum
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dorsal gray horn and ventral gray horn
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interneuron somas, and somas of motor neurons
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epithalamus contains what and produces what
- pineal gland, hormones. Superior to thalamus and 3rd ventricle
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filum terminale
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pai mater attached to coccyx
- innermost, delicate, attached to surface of brain and highly vascular
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PIA MATER
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name the 3 layers in the CNS
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pa, anarchnoid, and dura mater
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name the three meninges
- pia anarachnoid and dura mater
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neuron cell bodies and unmyelinated process
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inner grey matter
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spinal cord in the cns has bundles of myelinated axons
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white matter
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thalamus
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the switchboard for all sensory impulses to CEREBRAL CORTEX
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the cns is a subdivision of the nervous system and has
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brain and spinal cord, dorsal body cavity
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the CNS is also protected by
- meninges
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the CNS is an
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integration and command center
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the CNS is protected by
- bone- skull(brain) and vertebrae (spinalcord)
- thin, spiderly, middle, extends past spinal cord,
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arachnoid mater
- what is duramater
- outer rough fibrous double. dural sinuses-veins and dural folds-inner layer. it extends down the vertebral cavity beyond spinal cord
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white matter has what 2 kinds of tracts
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ascending tracts and descending tracts