Chapter 14: Special Sense Organs

Question 1

function of cornea

Answer 1

refraction of light

Question 2

choroid

Answer 2

blood supply

Question 3

ciliary body

Answer 3

secretion of vitreous fluid, helps change the shape of lens

Question 4

external ocular muscles

Answer 4

movement of the eyeball

Question 5

eyelid

Answer 5

protection

Question 6

iris

Answer 6

contracts/relaxes to control amount of light entering through pupil

Question 7

lacrimal glands

Answer 7

secretion of tears

Question 8

lens

Answer 8

light refraction

Question 9

optic nerve

Answer 9

transmission of visual signals to brain

Question 10

retina

Answer 10

transforms optic signals into nerve impulses

Question 11

rods

Answer 11

distinguish light from dark, perceive shape and movement

Question 12

cones

Answer 12

color vision

Question 13

sclera

Answer 13

external protection

Question 14

choroid/o

Answer 14

choroid

Question 15

chrom/o

Answer 15

color

Question 16

conjunctiv/o

Answer 16

conjunctiva

Question 17

corne/o, kerat/o

Answer 17

cornea

Question 18

dacry/o, lacrim/o

Answer 18

tear

Question 19

ir/o, irid/o

Answer 19

iris

Question 20

ocul/o, ophthalm/o

Answer 20

eye

Question 21

opt/o, optic/o

Answer 21

vision

Question 22

presby/o

Answer 22

old/old age

Question 23

pupill/o

Answer 23

pupil

Question 24

retin/o

Answer 24

retina

Question 25

ton/o

Answer 25

tone or tension

Question 26

chart used to test clearness and sharpness of vision

Answer 26

snellen chart

Question 27

ophthalmometer

Answer 27

instrument used to measure the eye, specifically the cornea

Question 28

myopia

Answer 28

nearsightedness

Question 29

hyperopia

Answer 29

farsightedness

Question 30

astigmatism

Answer 30

uneven focusing of an image

Question 31

Tonometry

Answer 31

measurement of the intraocular pressure using a tonometer

Question 32

visual field

Answer 32

physical space visible to an individual in a fixed position

Question 33

mydriatic

Answer 33

agent that dilates the pupil

Question 34

presbyopia

Answer 34

impairment of vision due to old age

Question 35

accommodation reflex

Answer 35

ability of the eye to adjust to different distances

Question 36

fluorescein angiography

Answer 36

procedure using fluorescent dye to examine movement of blood through blood vessels in the eye

Question 37

amblyopia

Answer 37

lazy eye. AKA strabismus

Question 38

blepharitis

Answer 38

inflammation of eyelid

Question 39

cataract

Answer 39

clouding

Question 40

achromatic vision, achromatopsia, daltonism

Answer 40

color vision deficiencies

Question 41

conjunctivitis

Answer 41

pink eye

Question 42

glaucoma

Answer 42

high intraocular pressure

Question 43

hordeolum

Answer 43

stye

Question 44

macular degeneration

Answer 44

deterioration of retina

Question 45

nyctalopia

Answer 45

poor night vision

Question 46

photophobia

Answer 46

sensitivity to light

Question 47

ptosis

Answer 47

drooping of upper eyelid

Question 48

retinal detachement

Answer 48

separation of retina from choroid

Question 49

retinopathy

Answer 49

any disease of the retina

Question 50

acoust/o, audi/o

Answer 50

hearing

Question 51

adenoid/o

Answer 51

adenoids

Question 52

aur/o, auricul/o, ot/o

Answer 52

ear

Question 53

cerumin/o

Answer 53

earwax

Question 54

cochle/o

Answer 54

cochlea

Question 55

myring/o, tympan/o

Answer 55

eardrum

Question 56

salping/o

Answer 56

eustachian tube

Question 57

-ory

Answer 57

pertaining to

Question 58

chem/o

Answer 58

chemical

Question 59

mechan/o

Answer 59

mechanical

Question 60

noc/i

Answer 60

cause harm, injury or pain

Question 61

phot/o

Answer 61

light

Question 62

therm/o

Answer 62

heat

Question 63

-osmia

Answer 63

sense of smell