What is the corticospinal tract responsible for?
-:- Voluntary motor activity (descending)
Where do the fibers of the of the lateral corticospinal tract cross the midline?
-:- At the pyramidal decussation in the caudal medulla
What are the bundles of fibers that connect the brain stem and the...
What special visceral efferent (SVE) fibers are carried by CN V?
✓ -:- Motor innervation to the muscles of mastication (recall that the head does not
develop embryologically from somites)
Where is the chief nucleus of V located within the mid pons?
✓ -:- On either side of the ventricle, anterior and slightly lateral to the two darker
hamburger shaped structures
How does information (discriminative touch and vibration) from the chief sensory nucleus
of V reach the VPM of the thalamus?
✓ -:- Through the trigeminal lemniscus
How does information (pain and temperature) from the spinal nucleus of CN V reach the
VPM of the thalamus?
✓ -:- Through the trigeminothalamic tract
What type of fibers are associated with the alar plate?
4|Page | Grade A+| 2024/2025
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