Eye vocab

Question 1

sebaceous glands

Answer 1

in eyelids, secrete lubricating oil onto surface of eyeball

Question 2

conjunctiva

Answer 2

covering on underside of eyelid and across anterior surface

Question 3

sclera

Answer 3

outermost protective layer, whites of eye

Question 3

cornea

Answer 3

bends and REFRACTS light rays

Question 4

choroid

Answer 4

middle layer, provides blood supply

Question 5

iris

Answer 5

colored portion, smooth muscle changes pupil size

Question 6

pupil

Answer 6

opening in center of iris, allows light to enter eyeball

Question 7

ciliary body

Answer 7

changes shape of lens so it can focus light onto retina

Question 8

strabismus**

Answer 8

inward or outward facing eye

Question 9

retina

Answer 9

sensory receptor cells detect light rays

Question 10

rods

Answer 10

see GRAY tones, active in dim light

Question 10

people who need CONCAVE LENSES are

Answer 10

near sighted

Question 11

cones

Answer 11

COLOR vision, active only in bright light

Question 12

aqueous humor

Answer 12

watery fluid, b/w cornea and lens

Question 13

vitreous humor

Answer 13

semi-solid gel, b/w lens and retina

Question 14

people who need CONVEX LENSES are

Answer 14

far sighted

Question 15

optic nerve

Answer 15

transmits image to brain