Organ Function
Med Terms
Prefixes
Suffixes
Root Words/Combining Vowels
100

Eye

Sight

100

Iris

Colored portion of the anterior eye

100

an-

not, without

100

-al, -ar, -ic

pertaining to

100

audi/o

hearing

200

Ear

Hearing, balance

200

Lens

Structure of the eye that focuses light into the retina

200

intra-

inside, within

200

-ptosis

drooping, downward movement

200

blephar/o

eyelid

300

Nose

Smell

300

Middle ear

Central cavity of the ear

300

peri-

around

300

-metry

measurement

300

ocul/o, ophthalm/o, opt/o, optic/o

eye, vision

400

Tongue

Taste

400

Optic nerve

Nerve that carries impulses for the sense of sight from the retina to the brain

400

para-

near, beside

400

-spasm

involuntary muscle contraction

400

ot/o

ear

500

Skin

Touch

500

Sclera

White, outer protective layer of the eye

500

extra-

outside

500

-opia

vision

500

tympan/o

tympanic membrane, eardrum

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