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Related Flashcards
Cards In This Set
| Front | Back |
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What type of signal travels through the anterior gray horn? motor or sensory?
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Motor
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What type of signal passes through the posterior gray horn? motor or sensory?
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Sensory
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What type of signal passes through the ascending spiral tracts?
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Sensory
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What type of signal passes through the descending spiral tracts?
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Motor
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What major nerves arise from the cervical plexuses?
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Phrenic nerve
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What major nerves arise from the brachial plexuses?
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Musculocutaneous, axillary, radial, median, ulnar
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What major nerves arise from the lumbar plexuses?
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Femoral and orburator nerves
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What major nerves arise from the sacral plexuses?
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Sciatic nerve
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IN function, how does the posterior spinal root differ from the anterior spinal root?
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Posterior spinal root carries sensory implulses to the spinal cord and the anterior spinal root carries motor impulses from the spinal cord
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What causes the cervical enlargement of the spinal cord?
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Due to increased neural information coming from and going to the upper extremities
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Where is the filum terminale found?
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Found attaching the inferior portion of the spinal cord to the coccyx
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What is the conus medullaris?
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The terminal portion of the solid part of the spinal cord. Found at about the level of L1 or L2
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What is the cauda equina?
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A structure that is composed of parallel fibers that continue from the conus medullaris into the spinal cord
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What is the endoneurium?
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The connective tissue sheath that wraps around the individual nerve fiber
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In the spinal cord, which is deep to the other, the white matter or the gray matter?
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Gray matter is deep to the white matter
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