The ascending auditory pathway goes directly from Type I auditory nerve fibers to
A)the contralateral cochlear nucleus.
B)the ipsilateral cochlear nucleus.
C)the contralateral inferior colliculus.

Question

Quizplus · Accepted Answer

The ascending auditory pathway starts at the Type I auditory nerve fibers, which synapse onto neurons in the cochlear nucleus. There are two cochlear nuclei – one on the ipsilateral side and one on the contralateral side. The ascending pathway continues on the ipsilateral side, and then crosses over to the contralateral side at the level of the superior olivary complex. Therefore, the correct answer is B, as the Type I auditory nerve fibers synapse onto neurons in the ipsilateral cochlear nucleus.

The Ascending Auditory Pathway Goes Directly from Type I Auditory