6.3 Ear malfunctions: Causes, symptoms, and effects

Question 1

Symptoms of deafness

Answer 1

Tinnitus- hearing ringing or buzzing that comes from inside your ear rather than an outside source
Loss of sounds at certain frequencies
Reduced receptivity to sounds in general

Question 2

Causes and risk factors of deafness

Answer 2

Damage to inner ear structures- damage to hair cells in cochlear which enables sensory info to be sent to the brain
Perforation to tympanic membrane- passes vibrations of sound waves due to injury- excessive pressure or prolonged exposure to loud noises, getting foreign objects stuck in the ear
Blockages cause the middle ear to become filled up with fluid, build up of earwax blocks the ear canal