Equilibrium and Hearing

Equilibrium and Hearing - Equilibrium and Hearing Both...

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Equilibrium and Hearing Both equilibrium and hearing are provided by receptors of the inner ear Anatomy of the ear – External Ear • Auricle or pinnae surrounds the ear • External acoustic meatus ends on tympanic membrane Middle ear • Communicates with pharynx via pharyngotympanic membrane • Middle ear encloses and protects the auditory ossicles Inner ear • Membranous labyrinth contains endolymph • Bony labyrinth surrounds and protects membranous labyrinth • Vestibule • Semicircular canals • Cochlea Components of the inner ear • Vestibule contains the utricle and saccule • Semicircular canals contain the semicircular ducts • Cochlea contains the cochlear duct Windows • Round window separates the perilymph from the air spaces of the middle ear • Oval window connected to the base of the stapes • Basic receptors of inner ear are hair cells • Provide information about the direction and strength of stimuli
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This note was uploaded on 11/22/2011 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Equilibrium and Hearing - Equilibrium and Hearing Both...

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