16 - Ears

Question 1

Amplitude

Answer 1

Loudness

Question 2

Frequency

Answer 2

Pitch

Question 3

Conductive hearing loss

Answer 3

involves a mechanical dysfunction of the external or middle ear. If the sound is loud enough (amplified) the person is able to hear. Cerumen, foreign bodies, perforated eardrum and otosclerosis are possible causes of this type of hearing loss.

Question 4

Sensorineural or perceptive hearing loss

Answer 4

ndicates a pathological condition of cranial nerve Vlll. Increasing the amplitude may not enable the person to hear. Common causes are ototoxic drugs (gentamycin) and presbycusis a gradual degeneration of the nerve that occurs with aging, may be the cause.

Question 5

Otosclerosis

Answer 5

gradual hearing loss that causes the footplate of the stapes to become fixed in the oval window. Common in 20-40yrs

Question 6

Presbycusis

Answer 6

hearing loss that occurs with agin. gradual sensorineural loss caused by nerve degeneration in the inner ear or auditory nerve