3.5

Question 1

What is stereocilia

Answer 1

These are tiny hairs that protrude from the hair cells of the organ of corti along the basilar membrane. When the stereocilia start to vibrate it starts the process of converting the vibrations in the ear to electrical impulses to send them to the brain.

Question 2

frequency vs amplitude

Answer 2

The frequency of the sound wave is what will determine the pitch, the sound’s highness or lowness. Shorter the wave the higher the pitch will be.Amplitude is the strength of a sound wave, found by taking the distance from the peak or trough of the wave and measuring it from the equilibrium.

Question 3

Place theory

Answer 3

Certain hair cells respond to certain frequencies. Hair cells at the base of the cochlea can detect higher pitch sounds. While hair cells near the top of the cochlea can detect lower pitch sounds, with the hair cells at the very top near the spiral detecting the lowest pitch sounds.

Question 4

What is sensorineural loss?

Answer 4

Sensorineural hearing loss is when a person’s clarity, loudness, and range of sounds are no longer able to be heard as they once were. This occurs because the cilia and the auditory nerve in both ears have been damaged.

Question 5

What is conductive hearing loss?

Answer 5

Conductive hearing loss is when sound waves cannot move through the outer ear to the middle ear, and inner ear. This can be because something is blocking the outer ear, or because the ear was damaged and can no longer have sound travel through the auditory canal

Question 6

cochlear implant vs hearing aid

Answer 6

A cochlear implant is a device that converts sounds into electrical signals, these signals help stimulate the auditory nerve and allow for signals to be sent to the brain. A hearing aid amplifies sounds to allow an individual to hear different sounds around them