Ch 17 Sense organs: The eye and ear Flashcards Preview

Medical Terminology > Ch 17 Sense organs: The eye and ear > Flashcards

Flashcards in Ch 17 Sense organs: The eye and ear Deck (33):
1

-opsia

vision

2

-otia

ear condition

3

-acusis

hearing

4

-cusis

hearing

5

-opia

vision

6

tympan/o

eardrum

7

dacry/o

tear

8

dipl/o

double

9

ir/o

iris

10

kerat/o

cornea

11

lacrim/o

tear

12

audiometry

an electric device used to determine hearing loss by frequency

13

cochlear implant

surgically implanted device that allows hearing impaired persons to understand speech

14

otitis media

inflammation of the middle ear

15

tinnitus

sensation of noises in the ears

16

vertigo

sensation of irregular motion from disease of inner ear

17

pinna

auricle; flap of the ear

18

semicircular canals

maintains equilibrium

19

glaucoma

increased pressure in the eye

20

cataract

clouding of the lens

21

astigmatism

defective curvature of the cornea

22

hyperopia

farsightedness

23

myopia

nearsightedness

24

presbyopia

impairment of vision due to old age

25

dacry/o

tear

26

sclera

tough, white outer coat of the eyeball

27

thalamus

relay center of the brain

28

refraction

bending of light rays by the cornea

29

retina

light sensitive nerve cell layer of the eye

30

rod

photoreceptor cell of retina essential for vision in dim light and for peripheral vision

31

accomodation

normal adjustment of the eye to focus on an object

32

aqueous humor

fluid produced by the ciliary body

33

cone

photoreceptor in the retina