Exam (elaborations)
HTHSCI 1H06A: Spinal Cord Pathways Questions and Answers
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HTHSCI 1H06A: Spinal Cord Pathways Questions and Answers
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1-72 of 72What is the layout of matter in the spinal cord?
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White matter on the outside, grey matter "horns" on the inside
What does the L3 myotome innervate?
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Hip
Where does proprioceptive information cross? What tract does it travel through?
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At the medulla (spinocerebellar tract, dorsal columns)
When does the proprioceptive info travel up the spinocerebellar tract?
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More info goes straight up to the cerebellum than is consciously being
shared with the cortex
What kind of output and input does the spinal cord receive?
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Motor output, sensory input
Where does the spinal cord send info?
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, Sensory info to the brain, motor info to the PNS
What would be ipsilateral signs in a lesion BELOW the brainstem crossing?
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-loss of touch and pressure
-loss of proprioception
-paralysis
What makes up the grey matter in the thoracic region?
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Dorsal horn, lateral horn, ventral horn
What do dorsal white columns do?
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Sends sensory info up to the brain
Which fibres are myelinated?
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