detecting sound Flashcards
1
Q
what is the function of the pinna
A
directs sound into auditory canal
2
Q
what is the function of the auditory canal
A
sound travels through it to reach the
eardrum
3
Q
what is the function of the eardrum
A
vibrates and passes vibrations to the ossicles
4
Q
what are ossicles
A
tiny bones that amplify sound
5
Q
what is the function of the cochlea
A
filled with thousands of tiny hairs and
liquid – sound makes the hairs move
6
Q
what is the function of auditory nerve
A
sends electrical signals to the brain
7
Q
what is the function of the semi-circular canals
A
helps you keep your balance
8
Q
what factors can affect your hearing
A
- a hole in the ear drum (grows back naturally)
- canal blocked with wax (curable)
- loud sounds or injury, causing damage to the hairs in the cochlea (permanent).
