ears Flashcards
middle sections: ear drum
membrane of the middle ear, which vibrates in response to sound waves
middle sections: malleus, incus and stapes (ossicles)
bodies tiniest bones (osscicles) that transmit vibrations of the eardrum
middle sections: eustachian tubes
allows the middle ear to be at the same pressure as atmospheric air
inner section: round window
it allows vibrations from the oval window to pass through the fluid, stimulating the sensitive hairs
inner section: cochlea
a spiralled (snail like) tube that contains jelly like fluid’s (perilymph).
inner section: organ of corti
hair like structures (located in the perilymph) are the sensitive elements in the inner ear
inner section: auditory nerve
passes impulse to the brain
semi-circular canals and ampullae (swelling)
helps us with our balance
pinnae
outside parts of the ear that channel sound into the external ear.
external ear (also known as the auditory canal).
auditory canal it is passage that channels soundwaves into the ear drum
what are the malfunctions of conductive hearing loss?
sounds cannot pass (conduct) from the outer ear to the inner ear, usually because of a blockage (E.g. earwax or a build up of fluid due to infection), due to a perforated ear drum or deterioration of the small bones due to osteoporosis.
what are the causes of conductive hearing loss?
trauma to the ear drum, repeated loud noises or simply aging.
what is the description and malfunctions of sensorineural hearing loss?
damage to the sensitive hairs cells of the organ of Corti in the inner ear or damage to the auditory nerve.
what are the causes of Sensorineural hearing loss?
from birth, as a result of illness (such as meningitis) or from a head injury.
what are the symptoms of both conductive hearing loss and Sensorineural hearing loss?
- Difficulty hearing other people clearly, and misunderstanding what they say, especially innoisy places
- Having to listen at high volume to music or television
- Having to concentrate hard to hear what other people are saying
