Anatomy - 8-1 - Retrocochlear anatomy(outside of the...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Retrocochlear anatomy (outside of the cochlea) The central auditory system
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Neuron fibers to nerve 30,000 afferent & 1800 efferent fibers gather together within the internal auditory canal to form the VIIIth cranial nerve VIIIth nerve enters the brainstem at the level of the pons and medulla VIIIth nerve travels through the brainstem to the auditory cortex
Image of page 2
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
First order to second order neurons Originate from hair cells and terminate at the cochlear nuclei in the brainstem Synapse with second order neurons then pass through the trapezoid body where they are delineated to either the ipsilateral or contralateral superior olivary complex All nuclei above this point will have bilateral representation of sound (information from both ears) This helps with localization and redundancy
Image of page 4
Second order to third order neurons Third order neurons (and some second order neurons) continue from the superior olivary complex along the lateral lemniscus tract Some neurons terminate here
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern