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. 2016 May 10;10:53. doi: 10.3389/fnana.2016.00053

Figure 6.

Figure 6

Anatomy of the intranuclear tract within the brainstem. dPSN, Dorsal part of the principal sensory nucleus; vPSN, Ventral part of the principal sensory nucleus; OS, Oral part of the spinal nucleus, IS, Interpolar part of the spinal nucleus; CS, Caudal part of the spinal nucleus; ST, Spinal tract; PAG, Periaquaductal gray; which receives afferents and courses more cranially as the intranuclear tract. V, Trigeminal nerve; VII, Facial nerve; VIII, Vestibulocochlear nerve; IX, Glossopharyngeal nerve; X, Vagus nerve.