Test 178  (Ocular anatomy)
1. The superior ophthalmic vein: 
a. is larger than the inferior ophthalmic vein
b. receives vortex veins from the upper part of the eyeball

c. is formed by the union of supraorbital vein and lacrimal 

d. leaves the orbit through the upper part of the superior 
    orbital fissure

e. normally receives the inferior ophthalmic vein before 
    entering the cavernous sinus

2. The ciliary epithelium:

a. contains an inner pigmented layer made up of cuboidal

b. contains two layer of cells with apices facing each other

c. contains an outer layer which is continuous with the 
    retinal pigment epithelium

d. is involved in aqueous production

e. contains blood vessels between its two layers

3. The ethmoidal sinuses:
a. are usually three numbers on either side

b. can be found extending into adjacent bones

c. all drained into the medial meatus

d. are related superiorly to the anterior cranial fossa

e. are separated from the orbit by a thick wall

. 4. The lacrimal nerve:
a. is the smallest of the three branches of the ophthalmic 

b. contains motor nerve that supplies the smooth muscle of
    the lacrimal gland

c. receives parasympathetic nerve fibres from the facial 

d. enters the orbit through the tendinous ring

e. gives sensory supply to the skin of the eyelid and the 

5. The circle of Zinn:

a. is formed from anastomosis of the long posterior ciliary 

b. supplies the outer layer of the retina

c. supplies blood to the intraorbital part of the optic nerve

d. is formed at the outer layer of the choroid

e. sometime gives rise to cilioretinal artery that supplies the

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