Human Ear Flashcards
1
Q
Pinna
A
Directs sound waves into auditory canal
2
Q
Auditory canal
A
Conducts sound waves from pinna to eardrum
3
Q
Eardrum
A
Vibrates when hit with sound waves
4
Q
Ossicles
A
3=hammer +anvil+stirrup
Transmit and amplify vibrations across the cavity to oval window
5
Q
Eustachian tube
A
Equalises ear pressure
6
Q
Oval window
A
Passes vibrations from stirrup to inner ear
7
Q
The scalas
A
Scalia media +upper+lower
Fluid vibrates=waves
8
Q
Membranes
A
Vibrate in response to waves
9
Q
Organ of corti
A
Converts mechanical stimuli to nerve impulses
10
Q
Auditory nerve
A
Carried nerve impulses to the temperal lobe to interpret as sound
11
Q
Ultricculus
A
Filled with endolymph
Respond to the pull of gravity
12
Q
Semicircular canals
A
Register movement of head
Duct -ampulla - crista inside- jelly cap capula
