The group of neuron cell bodies associated with the eighth cranial nerve during embryogenesis; splits in later development to form the cochlear and vestibular ganglia. [ http://www.informatics.jax.org/accession/smb MP:0003703 ]
Synonyms: ganglion VIII statoacoustic ganglion statoacoustic ganglia gVIII acoustic ganglion VIII auditory ganglion vestibulocochlear VIII ganglion acoustico-vestibular VIII ganglion statoacoustic (VIII) ganglion
Term information
- UMLS:C0037959 (BIRNLEX:2564)
- EHDAA:5569
- MA:0001084
- BIRNLEX:2564
- EHDAA2:0002196
- EMAPA:17571
- EHDAA:6653
- EFO:0003543
- TAO:0000588
- XAO:0004142
- neuronames:496 (BIRNLEX:2564)
- ZFA:0000588
- VHOG:0000696
- EMAPA:16982
efo_slim, pheno_slim, vertebrate_core
The sensory ganglion of the ear. (See Anatomical Atlas entry for statoacoustic ganglion by T. Whitfield.)[TAO]
statoacoustic VIII ganglion
nucleus nervi oculomotorii, pars ventralis
acoustic ganglion
auditory ganglion
nucleus nervi oculomotorii ventrolateralis
vestibulocochlear ganglia
(During the development of the inner ear in a vertebrate embryo) As the otic placode invaginates into a cup neuroblasts delaminate from the anterior ventral aspect of the otic epithelium to give rise to neurons of the vestibulocochlear (statoacoustic) ganglion of cranial nerve VIII.[well established][VHOG]
The cell bodies of the cochlear nerve lie within the central aspect of the cochlea and are collectively known as the spiral ganglion. This name reflects the fact that the cell bodies, considered as a unit, have a spiral (or perhaps more accurately, a helical) shape, reflecting the shape of the cochlea. The terms 'cochlear nerve fiber' and 'spiral ganglion cell' are used, to some degree, interchangeably, although the former may be used to more specifically refer to the central axons of the cochlear nerve. These central axons exit the cochlea at its base, where it forms a nerve trunk. In humans, this aspect of the nerve is roughly one inch in length. It projects centrally to the brainstem, where its fibers synapse with the cell bodies of the cochlear nucleus
Term relations
- cranial ganglion
- neural crest-derived structure
- develops from some epithelium of otic placode
- develops from some facio-acoustic neural crest
- part of some vestibulo-auditory system
- develops from some acoustico-facial VII-VIII ganglion complex