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Chapt 11-12

Anatomy

QuestionAnswer
What are the functions of the eyes? receptor organs for sight so we receive images; brain transmits to optic nerve
ocul- eye
-ar pertaining to
extra- outside of the eyeball
intra- within the eyeball
optic- pertaining to the eye
adnexa AKA adnexa oculi
What are the structures of the eyes? outside the eyeball, include the orbit, eye muscles, eyelids, eyelashes, conjunctiva & lacrimal apparatus
orbit AKA eye socket
eye muscles: 6 major; arranged in 3 pairs in each eye
binocular refers the use to of both eyes working together
How do the eye muscles work? they work together in coordinated movements that enable normal binocular vision
upper & lower eyelids help protect the eyeball from foreign matter, excessive light, & injuries due to other causes
canthus is the angle where the upper & lower eyelids meet
inner canthus where the eyelids meet nearest the nose
epicanthus a vertical fold of skin on either side of the nose; not everyone has
outer canthus where the eyelids meet farthest from the nose
tarsus AKA the tarsal plate, is the framework within the upper & lower eyelids
eyebrows & eyelashes prevent foreign matter from reaching the eyes
eyelashes consists of small hairs known as cilia
the edges of the eyelids contain oil-producing sebaceous glands
conjunctiva is the transparent mucous membrane that lines the underside of each eyelid & continues to form a protective covering over the exposed surface of the eyeball
lacrimal apparatus
Created by: Karebear