Midterm

Question 1

The lateral wall of the orbit contains the Greater Wing of the Sphenoid bone ad the ______ bone?

Answer 1

Zygomatic

Question 2

The ______ Plane is a vertical division into right and left

Answer 2

Sagittal

Question 3

A _____ is a gap between bones.

Answer 3

Fissure

Question 4

The thinnest bone in the medial wall of the orbit is the _________

Answer 4

Ethmoid

Question 5

Muller’s muscle helps the _________ open the upper lid.

Answer 5

Levator

Question 6

The _____ is the vertical opening between the lids.

Answer 6

palpebral fissure

Question 7

Zeis and Moll are ________

Answer 7

glands that lubricate the eyelashes

Question 8

The Epithelium layer of the conjunctiva contains the

Answer 8

goblet cells

Question 9

The conjunctiva is the inner most layer of the

Answer 9

lids

Question 10

The glands of ________ provide lacrimal fluid for the tears.

Answer 10

Krauss and Wolfring

Question 11

________ comes from the main lacrimal gland

Answer 11

Reflex Tearing

Question 12

The palpebral portion of the conjunctiva

Answer 12

Lines the lids

Question 13

The ________ muscle helps hold the lid margin against the eye

Answer 13

Riolan

Question 14

The semilunar fold is _________

Answer 14

an extra fold of conjunctival tissue

Question 15

The ________ are located in the tarsus

Answer 15

meibomian glands

Question 16

The Schemer Test uses ______ to measure the quantity of tears.

Answer 16

filter paper

Question 17

The ________ layer is the tear film layer which helps prevent evaporation

Answer 17

lipid

Question 18

What does the mucous layer of the tear film do?

Answer 18

makes the corneal surface wettable

Question 19

Oxygen is supplied to the cornea from all of the following except:
the tear film, gimbal vessels, aqueous humor, vitreous

Answer 19

vitreous

Question 20

The layer directly beneath bowman’s layer of the cornea is

Answer 20

the stroma

Question 21

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?

Answer 21

Endothelium

Question 22

The normal cornea is in a state of

Answer 22

deturgesence

Question 23

the normal tear break up time is

Answer 23

12-15 seconds

Question 24

The Ethmoid bone is located in the

Answer 24

medial wall

Question 25

The weakest part of the sclera is the

Answer 25

lamina cribrosa

Question 26

The turnover time for the entire corneal epithelium is approximately ____ days

Answer 26

7 days - about a week

Question 27

Where the upper and lower lids join in the corner is called the _______

Answer 27

Canthus/Canthi

Question 28

The conjunctiva that covers the sclera is called

Answer 28

bulbar conjunctiva

Question 29

A ptosis or drooping of the lid is due to a paralysis of _____

Answer 29

Muller’s Muscle

Question 30

______ is a dye used to perform the B.U.T. Test

Answer 30

Fluorescein

Question 31

Krause and Wolfring are

Answer 31

Accessory lacrimal glands

Question 32

The epithelium layer of the cornea contains the

Answer 32

basal cells (columnar), wing, and superficial cells (squamous)

Question 33

Tears leave the eye via the

Answer 33

punctum