Structures and Functions of the Ear

Question 1

pinna

Answer 1

enhances sound vibrations/ focuses them into the ear

Question 2

auditory canal

Answer 2

amplifies soundwaves

Question 3

tympanum

Answer 3

vibrates when sound waves hit it, passing to ossicles

Question 4

ossicles

Answer 4

(malleus, incus, stapes) amplify vibrations into oval window

Question 5

oval window

Answer 5

opening to inner ear

Question 6

eustachian tube

Answer 6

equalizes air pressure in the ear

Question 7

semicircular canals

Answer 7

contains sensors for balance

Question 8

vestibule

Answer 8

contains sensors fr balance

Question 9

cochlea

Answer 9

sound energies converted to impulses sent to the brain

Question 10

Tutorial membrane

Answer 10

the surface where hairs flex

Question 11

stereocilia

Answer 11

hair cells that initiate nerve impulses in sensory neurons

Question 12

sensory neurons

Answer 12

move nerve impulses from stereocilia to brian

Question 13

auditory nerve

Answer 13

collects impulses from hair cells and moves to temporal lobe

Question 14

Basilar Membrane

Answer 14

vibrations in inner ear cause it to vibrate which stimulates hair cells to move