Structures and Functions of the Eye

Question 1

accommodation

Answer 1

lens changing shape to focus the image on the retina

Question 2

sclera

Answer 2

protects and supports the eye

Question 3

cornea

Answer 3

bends light rays into the eye

Question 4

choroid

Answer 4

absorbs scattered light / contains blood vessels

Question 5

iris

Answer 5

regulates the amount of light that enters the eye

Question 6

pupil

Answer 6

opening for light to enter

Question 7

fovea centralis

Answer 7

contains many cones/ provides acute vision

Question 8

rods

Answer 8

photoreceptors sensitive to light intensity, contained in the retina

Question 9

cones

Answer 9

photoreceptors that detect color (wavelengths of light)

Question 10

ciliary muscles

Answer 10

changes shape of the lens to focus

Question 11

lens

Answer 11

focuses light rays into the fovea centralis

Question 12

optic nerve

Answer 12

transmits sensory info into the brain (contains blind spot)

Question 13

aqueous humor

Answer 13

nourishes the eye

Question 14

vitreous humor

Answer 14

maintains the shape of the eye

Question 15

retina

Answer 15

contains photoreceptors (mainly rods / some cones)