2 types of deafness
conduction deafness and nerve deafness
Conduction Deafness
Ossicles fuse together restricting their ability to magnify sounds
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2 types of deafness
conduction deafness and nerve deafness
Conduction Deafness
Ossicles fuse together restricting their ability to magnify sounds
Conduction Deafness is caused by
congenital defect when pregnant woman contract Rubella during the first trimester
Repeated ear infections
Otosclerosis – normal bone is replaced by spongy bone
Nerve deafness
Occurs when cilia on the receptors has worn away, can be due to aging and to exposure to loud noises over 80 decibels.
Very loud for short times or slightly loud for longer times can cause damage
Cochlear implants
Directly stimulate the auditory nerve
Very costly and speech received sounds like a robot