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6 Cards in this Set

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  • Back
What are the three main area of the ear and what is their function
Outer - Ear - collects sound waves and channels them inwards
Middle - conveys sound vibrations to the oval window
Inner - house the receptors for hearing and equilibrium
Describe the anatomy of the outer ear
Consists of the Auricle, external auditory canal & tympanic membrane
Ear opening contains hairs and ceruminous glands that secrete cerumen(earwax) to trap dust
Consists of the Auricle, external auditory canal & tympanic membrane
Ear opening contains hairs and ceruminous glands that secrete cerumen(earwax) to trap dust
Describe the anatomy of the middle ear
Found in petrous portion of temporal bone
separated from outer and inner ear by tympanic membrane and oval window
Contains auditiry ossicles, connected by synovial joints- malleus, incus & stapes
Euchachian tube found here connects to nasopharnyx
Found in petrous portion of temporal bone
separated from outer and inner ear by tympanic membrane and oval window
Contains auditiry ossicles, connected by synovial joints- malleus, incus & stapes
Euchachian tube found here connects to nasopharnyx
Describe the skeletal muscles found in the middle ear
Tensor tympani muscles connect to ossicles and limit movement to prevent damage during loud noises and chewing
What are the three channels of the cochlea
Cochlear duct
Scala vestibule
scala tymphani
what rests on the basilar membrane and what does it contain?
The organ of corti, which contains the 16,00- hair cell receptors for hearing