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عمومی::
medial lemniscus
It extends from the motor area of the cerebral cortex down through the brain stem, crossing over at approximately the same level as the medial lemniscus (at the junction between brain stem and spinal cord), (Figs. 15,17).
A, nucleus ambiguus; ML, medial lemniscus; S, nucleus solitarius; SC, spinocerebellar traci;ST, spinothalamic tract; 3, 4, CNs 3 and 4; 5, nucleus and tract CN5; 6, 7, 8, nuclei CNs 6, 7, 8; 10, dorsal motor nucleus CN10; 12, nucleus CN12.
the brain stem (theoretical) would interfere with conscious sensation below the head contralaterally by destroying the medial lemniscus and spinothalamic tracts.
The trigeminal lemniscus and medial lemniscus lie close to one another and for practical purposes may be considered to course in the same areas.
The corticospinal tract, medial lemniscus, spinothalamic tract, and spinocerebellar tracts are the most important clinically.
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