cochlear root of VIII nerve
<anatomy, nerve> One of the components of the vestibulocochlear nerve; it is made up of the central processes of the bipolar neurons which compose the spiral (cochlear) ganglion in the spiral canal of the modiolus of the bony cochlea; the cochlear root enters the cranial cavity by passing in fascicles through the spiral foraminous tract at the bottom of the internal auditory meatus; it enters the brainstem through the pontomedullary groove, closely adhering to the caudoventral aspect of the vestibular root, and distributes its fibres to the ventral and dorsal cochlear nuclei in the floor of the lateral recess of the fourth ventricle.
Synonym: radix cochlearis, cochlear root of vestibulocochlear nerve, inferior root of vestibulocochlear nerve, radix inferior nervi vestibulocochlearis.
(05 Mar 2000)
Terms mentioned in text: anatomy, nerve, components, vestibulocochlear nerve, processes, bipolar neurons, spiral, cochlear, ganglion, canal, modiolus, bony, cochlea, root, enters, cranial cavity, fascicles, through, spiral foraminous tract, bottom, internal auditory meatus, brainstem, pontomedullary groove, aspect, vestibular root, fibres, ventral, dorsal, cochlear nuclei, floor, lateral, recess, fourth ventricle, radix cochlearis, cochlear root, vestibulocochlear nerve, inferior root of vestibulocochlear nerve, radix inferior, nervi vestibulocochlearis
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