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Cortical homunculus → tract descending brainstem/spinal cord.
(Answers: 1 – Left lateral spinothalamic; 2 – Medulla (pyramidal decussation); 3 – Spinocerebellar) ascending and descending tracts of spinal cord ppt
S ensory = A scending (Afferent); M otor = D escending (Efferent). 2 – Medulla (pyramidal decussation)
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