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Ch. 17, Part 2
Lecture exam #4
20
Anatomy
Undergraduate 1
07/07/2011

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Cards

Term
What are palpebrae?
Definition
Eyelids
Term
What are the punctums?
Definition
Consists of the upper and lower punctum and is a collection for tears to drain
Term
What is the lacrimal canal?
Definition
A canal for the draining of tears which starts at the medial portion of the eye (closest to the midline of the body) and connects to the lacrimal sac.
Term
What is the lacrimal sac?
Definition
Located in the medial wall of the orbit; the upper portion of the nasolacrimal duct into which the two lacrimal canals empty
Term
What is the nasolacrimal duct?
Definition
A channel that transmits tears from the lacrimal sac to the nose.
Term
What are tarsal glands?
Definition
Located on the inferior palpebrae; secretes an oily substance to coat the eye and reduces tear evaporation
Term
What is a sty?
Definition
Inflammation or infection of the tarsal gland
Term
What is the conjunctiva?
Definition
Transparent mucous membrane, very rich in blood vessels, which prevents materials from going into the back of the eyeball.
Term
What are the 2 types of conjunctiva?
Definition
Bulbar conjunctiva and palpebral conjunctiva
Term
What is bulbar conjunctiva?
Definition
covers front of eyeball
Term
What is palpebral conjunctiva?
Definition
Covers the back of each eyelid
Term
What is pink eye?
Definition
Infection of the conjunctiva
Term
What is inflammation of the conjunctiva?
Definition
Blood-shot eyes
Term
What are the 6 muscles that move the eye?
Definition
Superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique and inferior oblique
Term
What nerve controls the superior rectus?
Definition
oculomotor nerve (3)
Term
What nerve controls the inferior rectus?
Definition
oculomotor (3)
Term
What nerve controls the lateral rectus?
Definition
Abducens (6)
Term
What nerve controls the medial rectus?
Definition
oculomotor (3)
Term
What nerve controls the superior oblique?
Definition
Trochlear (4)
Term
What nerve controls the inferior oblique?
Definition
Oculomotor (3)
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