12.3 sense of hearing

Question 1

step one

Answer 1

sound waves vibrate the tympanic membrane

Question 2

step 2

Answer 2

waves are amplified and passed through the tympanic membrane to ossicles

Question 3

step 3

Answer 3

stapes taps the oval window which creates fluid waves within the cochlea

Question 4

step 4

Answer 4

`fluid waves cause vibration of the basilar membrane

Question 5

step 5

Answer 5

movement of basilar membrane causes stereocilia of the hair cells to bed against tectorial membrane

Question 6

step 6

Answer 6

hair cells sense this bending an generate AP that will be carried along the auditory canal to the brain

Question 7

step 7

Answer 7

nerve impulse is sent to the thelamus then the temporal lobe