the ear and the eye

Question 1

iris (definition and location)

Answer 1

• regulates the amount of light entering the eye by adjusting the size of the pupil
• behind the cornea

Question 2

pupil

Answer 2

the adjustable opening at the center of the iris through which light enters the eye

Question 3

lens (definition and location)

Answer 3

• behind the iris

- helps to focus light on the retina

Question 4

retina (eye)

Answer 4

the light sensitive layer of tissue that lines the back of the eye

Question 5

semicircular canals (ear)

Answer 5

three fluid filled channels in the inner ear. they provide information to the brain to maintain balance

Question 6

cochlea (ear)

Answer 6

transform the vibrations of the cochlear fluids into a neural signal

Question 7

anvil (ear)

Answer 7

transmit sound waves from the ear drum to the inner ear

Question 8

ear drum (ear)

Answer 8

captures sounds and sends it to the hammer

Question 9

auditory nerve (ear)

Answer 9

sends hearing information to the brain

Question 10

optic nerve (eye)

Answer 10

the bundle of nerve fibers at the back of the eye that carry messages from the retina to the brain

Question 11

cornea (eye)

Answer 11

the primary light focusing structure