Chapter 14 (Special Sense Organs of the Peripheral Nervous System)

cornea (function)

refraction of light

choroid (function)

blood supply

ciliary body (function)

secretion of vitreous fluid, helps change the shape of lens

external ocular muscles (function)

movement of the eyeball

eyelid (function)

protection for the eye

iris (function)

contracts or relaxes to control the amount of light entering the eye through the pupil

lacrimal glands (function)

secretion of tears

lens (function)

light refraction

optic nerve (function)

transmission of visual information to the brain

retina (function)

transforms optic signals into nerve impulses

rods (function)

distinguish light from dark, perceive shape and movement

cones (function)

color vision

sclera (function)

external protection

choroid/o

choroid

chrom/o

color

conjunctiv/o

conjunctiva

corne/o, kerat/o

cornea

dacry/o, lacrim/o

tear

ir/o, irid/o

iris

ocul/o, opthalm/o

eye

opt/o, optic/o

vision

presby/o

old or old age

pupill/o

pupil

retin/o

retina

ton/o

tone or tension

acoust/o, audi/o

hearing

adenoid/o

adenoids

aur/o, auricul/o, ot/o

ear

cerumin/o

ear wax

cochle/o

cochlea

myring/o, tympan/o

eardrum

salping/o

eustachian tube

-ory

pertaining to

chem/o

chemical

mechan/o

mechanical

noc/i

cause harm, injury, or pain

phot/o

light

therm/o

heat

-osmia

sense of smell