PSYC 211 Chapter Notes - Chapter 7.2: Tectorial Membrane, Neomycin, Cochlea
3 Jun 2016
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The organ of corti sends auditory information to the brain by means of the cochlear nerve, a branch of the auditory nerve. In this way, they influence the effects of sound vibrations on the inner hair cells. The cochlear nerve contains both efferent and afferent axons. The neurotransmitter at the afferent synapses is glutamate. The terminal buttons of the efferent axons release acetylcholine, which has an inhibitory effect on the hair calls. The axons enter the cochlear nucleus of the medulla and synapse there. Most of the axons in the cochlear nucleus send axons to the superior olivary complex, also in the medulla: axons in these nuclei pass through a large fibre bundle called the lateral lemniscus to the. Neurons in the ic send their axons to the medial geniculate nucleus of the thalamus, which sends its axons to the auditory cortex of the temporal lobe.
