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#Id: 5663

#Unit 7. System Physiology – Animal

Auditory hair cells in the Organ of Corti are the sites of auditory transduction

TLS Online TPP Program

#Id: 5664

#Unit 7. System Physiology – Animal

The nerves that serve the organ of Corti are contained in the vestibulocochlear nerve (CN VIII)

TLS Online TPP Program

#Id: 5665

#Unit 7. System Physiology – Animal

The hair cells are arranged in four rows: 

Three rows of outer hair cells (20,000)

One row of inner hair cells (3500)

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#Id: 5666

#Unit 7. System Physiology – Animal

Covering the rows of hair cells is a thin, viscous, but elastic tectorial membrane in which the tips of the outer hair cells are embedded

TLS Online TPP Program

#Id: 5667

#Unit 7. System Physiology – Animal

The processes of the hair cells are bathed in endolymph, whereas their bases are bathed in perilymph, this arrangement is necessary for the normal production of

receptor potentials

TLS Online TPP Program

#Id: 5668

#Unit 7. System Physiology – Animal

Except in the cochlea, the kinocilium, is a true but nonmotile cilium with nine pairs of microtubules around its circumference and a central pair of microtubules. one of the largest processes and has a clubbed end. 

(The kinocilium is lost from the hair cells of the cochlea in adult mammals)