Ear

Question 1

The function of the round window:

Answer 1

Allow excess sound waves to escape the ear preventing reverberation

Question 2

How does the surface area of the membranes in the ear influence hearing?

Answer 2

Moving from a large surface area to a small surface area amplifies the sound for clear hearing

Question 3

Function of the ossicles:

Answer 3

Amplification of sound

Question 4

Which structure in the ear converts sound waves into mechanical movement?

Answer 4

Tympanic membrane

Question 5

Explaining amplification:

Answer 5

The sound vibrations are transmitted from the large tympanic membrane to the smaller oval window through the ossicles which are arranged from larger to smallest. This concentrates the vibrations, amplifying them

Question 6

What does moving from a large to small surface area do to sound?

Answer 6

Concentrates it

Question 7

Explain hearing:

Answer 7

Pinna traps sound waves into ear canal. Causes tympanic membranes to vibrate.
Vibration is transmitted to ossicles
Ossicles amplify the vibration and transmit it to the oval window.
The oval window vibrates, creating waves in fluid of the cochlea which stimulates organ of Corti to convert wave into an impulse.
Impulse travels along auditory never to cerebrum where interpreted as sound