Midterm Flashcards
The lateral wall of the orbit contains the Greater Wing of the Sphenoid bone ad the ______ bone?
Zygomatic
The ______ Plane is a vertical division into right and left
Sagittal
A _____ is a gap between bones.
Fissure
The thinnest bone in the medial wall of the orbit is the _________
Ethmoid
Muller’s muscle helps the _________ open the upper lid.
Levator
The _____ is the vertical opening between the lids.
palpebral fissure
Zeis and Moll are ________
glands that lubricate the eyelashes
The Epithelium layer of the conjunctiva contains the
goblet cells
The conjunctiva is the inner most layer of the
lids
The glands of ________ provide lacrimal fluid for the tears.
Krauss and Wolfring
________ comes from the main lacrimal gland
Reflex Tearing
The palpebral portion of the conjunctiva
Lines the lids
The ________ muscle helps hold the lid margin against the eye
Riolan
The semilunar fold is _________
an extra fold of conjunctival tissue
The ________ are located in the tarsus
meibomian glands
The Schemer Test uses ______ to measure the quantity of tears.
filter paper
The ________ layer is the tear film layer which helps prevent evaporation
lipid
What does the mucous layer of the tear film do?
makes the corneal surface wettable
Oxygen is supplied to the cornea from all of the following except:
the tear film, gimbal vessels, aqueous humor, vitreous
vitreous
The layer directly beneath bowman’s layer of the cornea is
the stroma
The normal cornea is transparent due to the pumping action creating proper fluid balance. Which layer of the cornea is most responsible for maintaining this function?
Endothelium
The normal cornea is in a state of
deturgesence
the normal tear break up time is
12-15 seconds
The Ethmoid bone is located in the
medial wall
The weakest part of the sclera is the
lamina cribrosa
The turnover time for the entire corneal epithelium is approximately ____ days
7 days - about a week
Where the upper and lower lids join in the corner is called the _______
Canthus/Canthi
The conjunctiva that covers the sclera is called
bulbar conjunctiva
A ptosis or drooping of the lid is due to a paralysis of _____
Muller’s Muscle
______ is a dye used to perform the B.U.T. Test
Fluorescein
Krause and Wolfring are
Accessory lacrimal glands
The epithelium layer of the cornea contains the
basal cells (columnar), wing, and superficial cells (squamous)
Tears leave the eye via the
punctum
