Exploring Medical Language- Ch. 12, Eyes: Structures and Word Parts

Question 1

outer protective layer of the eye

Answer 1

sclera

Question 2

transparent anterior part of the sclera; allows light rays to enter the eye

Answer 2

cornea

Question 3

middle layer of the eye; interlaced with many blood vessels that supply nutrients to the eye

Answer 3

choroid

Question 4

pigmented muscular structure that regulates the amount of light entering the eye by controlling the size of the pupil

Answer 4

iris

Question 5

opening in the center of the iris

Answer 5

pupil

Question 6

lies directly behind the pupil; its function is to focus and bend light

Answer 6

lens

Question 7

innermost layer of the eye, which contains vision receptors

Answer 7

retina

Question 8

watery liquid found in the anterior cavity of the eye; provides nourishment to nearby structures and maintains shape in the anterior part of the eye

Answer 8

aqueous humor

Question 9

jellylike substance found behind the lens in the posterior cavity of the eye that maintains its shape

Answer 9

vitreous humor

Question 10

oil glands found in the upper and lower edges of the eyelids that help lubricate the eye

Answer 10

meibomian glands

Question 11

produces and drain tears

Answer 11

lacrimal glands and ducts

Question 12

carries visual impulses from the retina to the brain

Answer 12

optic nerve

Question 13

mucous membrane lining the eyelids and covering the anterior portion of the sclera

Answer 13

conjunctiva

Question 14

blephar/o

Answer 14

eyelid

Question 15

conjunctiv/o

Answer 15

conjunctiva

Question 16

cor/o, core/o

Answer 16

pupil

Question 17

pupill/o

Answer 17

pupil

Question 18

corne/o

Answer 18

cornea

Question 19

kerat/o

Answer 19

cornea

Question 20

dacry/o

Answer 20

tear, tear duct

Question 21

lacrim/o

Answer 21

tear, tear duct

Question 22

ir/o, irid/o

Answer 22

iris

Question 23

ocul/o

Answer 23

eye

Question 24

opthamal/o

Answer 24

eye

Question 25

opt/o

Answer 25

vision

Question 26

phac/o, phak/o

Answer 26

lens

Question 27

retni/o

Answer 27

retina

Question 28

scler/o

Answer 28

sclera

Question 29

cry/o

Answer 29

cold

Question 30

dipl/o

Answer 30

two, double

Question 31

is/o

Answer 31

equal

Question 32

phot/o

Answer 32

light

Question 33

ton/o

Answer 33

tension, pressure

Question 34

bi-, bin-

Answer 34

two

Question 35

-opia

Answer 35

vision (condition)

Question 36

-phobia

Answer 36

abnormal fear of or aversion to specific things

Question 37

-plegia

Answer 37

paralysis