Inner ear Flashcards
What is conductive hearing loss?
Hearing loss due to outer/middle ear issues
Where picks up high frequence/low frequncey?
Initial section of the cochlea is high frequencies, lower frequencies are picked up by the distal (further away aspects of the cochlea)
What is the tonotopic arrangement, where do these nerves end up?
Nerves from initial to distal parts of the cochlea staying in order to the acoustic area of the temporal lobe
Hearing loss simple test
Just so they cant see you and whisper/talk
What are the tuning fork tests
Weber and Rinne
Weber test
Tests for which ear W = symmetrical, decides which ear the has the hearing loss.
If conductive hearing loss, it will be heard in the bad ear. If sensorineural hearing loss it will be heard in the good ear
Rinne test
Singular ear test (R looks like 1 single odd ear, can differentiate if it is conductive or non conductive hearing loss)
What is a sign of conductive hearing loss?
If in Rinne bone will be louder than air.
Useful frequency for speach
What is an air bone gap
What test is used in new born children to measure hearing loss?
What does a Typanometry tell you?
Types of hearing aids and their uses
Oltolith organs
Utricle and Saccule
structure of if how we cotrol balance
Otolith organs = hair cells in fluid with otoliths ontop. Move/accelarate then hairs move and increase firing rate