The Auditory Nerve: Peripheral Innervation, Cell Body Morphology, and Central Projections

摘要: In mammals, all known auditory information enters the brain by way of cochlear division vestibulocochlear nerve, hereafter referred to as nerve. Primary neurons, whose cell bodies reside in spiral ganglion cochlea, send peripheral processes out organ Corti contact acoustic receptor cells; central or axons bundle together form The terminus nerve is nucleus. this way, primary neurons convey output receptors There arc two types receptors, inner hair cells and outer (Retzius 1884; Ramon y Cajal 1909), populations (Munzer 1931; Spoendlin 1973), many neuron classes nucleus (Lorente de No 1933; Osen 1969; Brawer, Morest, Kane 1974). turn, give rise pathways. a general role receive incoming discharges, preserve transform signals, distribute outgoing activity higher centers. order understand earliest stages stimulus coding system, we need know (1) nature signals conveyed fibers, (2) their source periphery, (3) destination brain. This report shall review progress that has been made along these lines investigation.