SP3d Ears and hearing Flashcards
1
Q
What determines how vibrations of different frequencies will affect a solid?
A
the shape and properties of the solid (e.g. density + stiffness).
2
Q
- What do sound waves reach and then are channelled into?
A
reach the pinna, channelled into the auditory canal.
3
Q
- What do sound waves pass to and what happens?
A
pass to the eardrum which then vibrates.
4
Q
- What are vibrations passed on by?
A
ossicles.
5
Q
- What are the vibrations passed on by ossicles, passed to?
A
the oval window.
6
Q
- What do vibrations continue through?
A
the fluid in the cochlea and move to the cillia.
7
Q
- What does the vibrations continuing through the fluid in the cochlea and moving to the cilia lead to?
A
electrical signals being sent along the auditory nerve.
8
Q
- What is recieved at the brain allowing us to hear sound?
A
electrical impulses.
9
Q
What are the two types of hearing loss?
A
.Conductive hearing loss
.Sensorineural hearing loss
10
Q
What is conductive hearing loss?
A
Relates to the outer and middle ear, where energy transfers cannot be made efficiently. Can be only a temporary hearing loss.
11
Q
What is sensorineural hearing loss?
A
Relates to the inner ear, and is almost certainly a permanent hearing loss.
