Medical Definition of Acoustic lemniscus

1. A bundle of ascending fibres that originate from the cochlear and auditory relay nuclei of the rhombencephalon, enter the trapezoid body, a transverse fibre stratum in which about half their number decussate, and from here turn rostrally along the lateral side of the spinothalamic tract; in the midbrain, it arches dorsally and enters the inferior colliculus in which all of its fibres terminate; the auditory pathway is transsynaptically extended from here by the brachium of the inferior colliculus to the medial geniculate body of the thalamus, from which in turn the auditory radiation leads to the auditory cortex; intercalated in the trapezoid body and along the ascending trajectory of the lemniscus are several cell groups in which part of the fibres synapse. Synonym: lemniscus lateralis, acoustic lemniscus, auditory lemniscus, auditory tract, lateral fillet. (05 Mar 2000)



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Lexicographical Neighbors of Acoustic Lemniscus

acoustic couplers
acoustic crest
acoustic delay line
acoustic device
acoustic emission
acoustic emissions
acoustic energy
acoustic enhancement
acoustic gramophone
acoustic guitar
acoustic guitarist
acoustic guitars
acoustic impedance
acoustic impedance tests
acoustic jamming
acoustic lemniscus (current term)
acoustic lens
acoustic maculae
acoustic meatus
acoustic modem
acoustic nerve
acoustic nerve diseases
acoustic neurilemoma
acoustic neuroma
acoustic neuromas
acoustic papilla
acoustic phenomenon
acoustic power
acoustic pressure
acoustic projection

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