SHS exam ear

Question 1

Different types of hearing loss and what can occur

Answer 1

Conductive :The outer and inner ear that obstruct sound
Sensorineural: The inner ear or the auditory nerve is damaged or malfunctioning
Mixed: Both conductive and sensorineural loss are present

Question 2

Ossicular chain (what does it do to sound, and what is in it)

Answer 2

Amplifies sound
Malleus, incus, stapes

Question 3

Basilar membrane

Answer 3

Is the floor of the cochlear duct

Question 4

Organ of Corti

Answer 4

Structure on the basilar membrane of the cochlea that is composed of hair cells and dendrites of auditory nerve fibers
Movements of cochlear partition are translated into natural signals by structures

Question 5

Tectorial membrane

Answer 5

Gelatinous structure attached on one end
Vibrations cause displacement of the tectorial membrane which bands stereocillia causes the release of neurotransmitters

Question 6

Reissner’s membrane

Answer 6

a thin, elastic membrane located within the cochlea of the inner ear. It acts as a barrier, separating the scala vestibuli (the upper fluid-filled chamber) from the scala media (the middle, fluid-filled chamber). This membrane plays a crucial role in regulating ionic equilibrium and maintaining the perilymph-endolymph barrier within the inner ear

Question 7

Know where the hair cells are located and if they can regenerate

Answer 7

The cochlea and it can not regenerate

Question 8

Tonotopic organization of the cochlea

Answer 8

High frequencies at the base and lower frequencies travel farther in the cochlea, Apex (the tip)