Q: What component of the trigeminal sensory nuclei is located at this level?
A:  caudal nucleus of the spinal trigeminal nucleus 

Q: Name a nucleus that gives rise to a serotonergic projection to A. What is the function of this projection?
A: Raphe nucleus; pain suppression

Q: This is the level of the caudal portion of the interpolar nucleus. What is its function?
A:  pain from the oral cavity

Q: Name one nucleus that projects axons into the marked tract?
A: rostral solitary nucleus (gustatory projection)

Q: Where do axons in the most dorsomedial portion of the marked tract synapse?
A: ventral posterior medial nucleus

 
Q: Sensory fibers in the marked cranial nerve terminate in which brain stem sensory nuclei?
A: main trigeminal sensory; spinal trigeminal sensory. 

Q: Roughly, at which marked level is the main trigeminal sensory nucleus?
A: B, which is at the level of the mid pons

Q: Name one cranial nerve that provides input to the marked nucleus.
A: 7, 9, and 10 provide gustatory information to the VPM parvocellular nucleus. 

Q: To which marked region(s) does the thalamic gustatory nucleus project?
A: C

Q: Where do neurons of the ventral posterior medial nucleus synapse? (The yellow line corresponds to the central sulcus.)
A: C