<prompt> Auditory impulse relays toInferior geniculate ganglionMedial geniculate bodyMedial lemniscusSuperior colliculus  <response>: B Medial geniculate body The afferent fibers in the auditory division of the eighth cranial nerve end in dorsal and ventral cochlear nuclei. From there, auditory impulses pass by various routes to the inferior colliculi, the centers for auditory reflexes, and via the medial geniculate body in the thalamus to the auditory cortex. Other impulses enter the reticular formation. Information from both ears converges on each superior olive, and beyond this, nrnst of the neurons respond to inputs from both sides. The primary auditory cortex is Brodmanns area 41. In humans, low tones are represented anterolaterally and high tones postero-medially in the auditory cortex. 