Virtual Tour of the Ear©: Hearing Mechanism

Perry

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Augustana College

Perry C. Hanavan, Sioux Falls, SD 57197

THE HEARING MECHANISM
Peripheral Hearing Mechanism				Central Auditory Mechanism
Conductive Mechanism		Sensorineural Mechanism		Central Auditory Mechanism
Outer Ear	Middle Ear	Inner Ear	Auditory Nerve	Central Auditory Pathway
auricle(1) auricle(2) ceruminous gland concha external auditory meatus external ear and canal	eustachian tube(1) eustachian tube(2) mastoid space ossicles round window stapes(1) stapes(2) stapedial muscle Facial Nerve (innervates stapedial muscle) tensor tympani muscle tympanic cavity tympanic membrane tympanic membrane tympanic membrane (Moiré) tympanic membrane model	Vestibular: semicircular canals crista utricle saccule Auditory: basilar membrane cochlea cochlea(1) cochlea(2) cochlea(3) cochlear (freq. place) modiolus scala media cochlear scalae scala tympanii scala vestibuli organ of Corti(1) organ of Corti(2) organ of Corti(3) outer hair cells(1) outer hair cells(2) outer hair cells(3) outer hair cell (dimensions) outer hair cell cilia inner hair cells (1) inner hair cells (2) inner hair cell (dimensions) hair bundles inner hair cell cilia neurotransmitters stereocilia spiral lamina stria vascularis basilar membrane tectorial membrane tectorial membrane(2) endolymph perilymph internal auditory artery	Vestibular Branch vestibular nerve fibers vestibular nerve function Auditory Branch spiral ganglion spiral ganglion spiral ganglion auditory nerve auditory nerve Schwann cells	AscendingPathway: corpus callosum auditory cortex primary auditory cortex auditory radiation medial geniculate body(1) medial geniculate body(2) inferior colliculi(1) inferior colliculi inferior colliculi commisure of IC l ateral lemniscus(1) lateral lemniscus(2) lateral lemniscus(jpg) superior olivary complex(1) superior olivary complex(2) superior olivary complex(3) superior olivary complex(4) trapezoid body(1) trapezoid body (2) trapezoid body(3) cochlear nuclei (1) cochlear nuclei (2) dorsal cochlear nuclei ventral cochlear nuclei (1) ventral cochlear nuclei (2) ventral cohlear nuclei(3)
conductive loss		sensorineural loss		central auditory processing disorder
mixed loss				central auditory processing disorder

VIRTUAL TOUR OF THE EAR©
Hearing Mechanism	Disorders of Hearing	Audiologic Rehabilitation
Speech Perception	Audiology	Other Tours
Lesson Plans	Presbycusis	Hair Cells of Inner Ear
Journals	Home	Perry C. Hanavan

Last updated Mar 2007

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