Question

The axons of upper motoneurons of peripheral nerves are found in the corticospinal tract. The axons of UMNs of cranial nerves are found in the corticobulbar tract. True or False?

Answer 1

The axons of UMNs of peripheral nerves are found in the corticospinal tract, while the axons of UMNs of cranial nerves are found in the corticobulbar tract.

Step-by-step explanation:

The statement is true.

The axons of upper motor neurons (UMNs) of cranial nerves are found in the corticobulbar tract. These axons project from the primary motor cortex to the motor nuclei on the same side of the nervous system. On the other hand, the axons of UMNs of peripheral nerves are found in the corticospinal tract. These axons largely cross the midline of the brain stem or spinal cord and synapse on the opposite side of the body.