Test 164  (Ocular anatomy )
1. With regard to the orbit:
a. the largest portion of the medial orbital wall is made 
    up of lacrimal bone

b. lamina papyracea separates the orbit from the 
    ethmoidal air cells

c. inferior oblique originates from the maxillary bone

d. trochlear, a small piece of bone in the roof of the orbit
    is located 4 mm from the orbital margin

e. the lesser wing of sphenoid forms part of the medial 


2. The ciliary ganglion:
a. is found 3 cm in  front of the annulus of Zinn

b. is located lateral to the ophthalmic artery 

c. is situated between the lateral orbital wall and 
    the lateral rectus muscle

d. receives three roots

e. if damaged causes mydriasis of the ipsilateral eye

3. The ciliary ganglion receives the following branches:
a.  a sensory root from nasociliary nerve

b. a sensory root from lacrimal nerve

c. a motor root from the inferior oculomotor nerve

d. a motor root from the trochlear nerve

e. sympathetic root from the plexus around the internal
    carotid artery


4. The short ciliary nerves:

a. arise from the ciliary ganglion

b. contain both sympathetic and parasympathetic fibres

c. enter the globe near the vortex veins

d. travel anteriorly between the scleral and the choroid

e. contains fibres that are non-myelinated


5. The ciliary body:
a. receives equal innervation from parasympathetic 
    and sympathetic nerve fibres

b. contains striated muscle fibres

c. contains mainly radial muscle fibres

d. when contracted opens up the trabecular meshwork

e. accumulates connective tissue with age

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