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What is different between the corticospinal tracts and corticobulbar tracts?

User Chrsan
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The corticospinal tract carries motor signals from the primary motor cortex in the brain, down the spinal cord, to the muscles of the trunk and limbs. And The corticobulbar tract carries efferent, motor, information from the primary motor cortex to the muscles of the face, head and neck.
User Oliverkn
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