Cochlear Nuclei (Dorsal and Ventral)
Cochlear nuclei is the nuclei that receive first-order auditory input from the organ of Corti in the cochlea of the inner ear.
The cochlear nuclei are divided into a dorsal and a ventral group. The dorsal cochlear nuclei give rise to the dorsal acoustic stria, which immediately cross the midline and contribute fibers that ascend contralaterally in the lateral lemniscus. The ventral cochlear nuclei are the source of two other auditory pathways, the intermediate and the ventral acoustic stria. The former also crosses the midline and, like the dorsal acoustic stria, ascends in the contralateral lateral lemniscus. Fibers making up the ventral acoustic stria, the largest of these three pathways, take three different paths after leaving the nucleus. They (1) synapse in both the ipsilateral or contralateral superior olivary nuclei, which in turn send tertiary fibers to the inferior colliculi via the ipsilateral and contralateral lateral lemniscus, and (2) send...
References and Readings
- Wilson-Pauwek, L., Akesson, E. J., Stewart, P. A., & Spacey, S. D. (2002). Cranial nerves in health and disease. Hamilton: B.C. Decker.Google Scholar