comparing and contrasting corticospinal tract & corticobulbar tract which of the following statements are accurate?

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one carries motor signals, the other carries sensory signals

no, both are descending (motor) tracts

one carries voluntary motor signals, one carries reflexive motor signals

no, both carry voluntary motor pathways

one ends/terminates by synapsing on a lower motor neuron, the other involves only upper motor neurons

no, they both synapse on lower motor neurons....either in the anterior horn of the spinal cord (corticospinal tract) or in the brainstem onto cranial nerve nuclei (corticobulbar)

one decussates in the medulla, the other decussates above the medulla

sort of....the lateral corticospinal tract doesd decussate in the medulla; some fibers of the corticobulbar do decussate (those innervating the lower facial muscles) and do so above the medulla.... other fibers don't decussate at all

one innervates the muscles of the body, the other innervates the muscles of the head/neck/face

yes


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