1. Regarding immunoglobulins:
a. myeloma proteins representing
each of the major classes of
immunoglobulins
and the 4 subclasses of immunoglobulins have been
identified
b. IgA is the second most abundant
class of immunoglobulins in the serum
c. each contains 4 polypeptide chains
d. IgG is the only immunoglobulins
that crosses the human placental barrier
e. rheumatoid factor is not an immunoglobulins
2. Fluid outflow pathways
in a normal eye include:
a. cilio-choroidal outflow
b. choroido-vortex outflow
c. uveo-scleral outflow
d. trans-scleral outflow
e. vitreoretino-choroidal outflow
3. The following drugs may
cause benign intracranial hypertension:
a. corticosteroids
b. acetazolamide
c. tetracycline
d. vitamin A
e. ethambutol
4. Echothiophate:
a. its a cholinesterase
inhibitor
b. therapy may cause apnoea on succinylcholine
administration
c. concomitant phenylephrine drops
minimize production of iris cysts
d. causes cataract formation
e. is used in treatment of lice
infestation of lashes
5. Pterygo-palatine fossa contains:
a. maxillary nerve
b. pterygopalatine ganglion
c. lesser superficial petrosal nerve
d. nerve of pterygoid canal
e. maxillary artery
6. Regarding SF6 gas:
a. it is lipid soluble
b. it can cause posterior subcapsular
cataract
c. it absorbs nitrogen from vein
d. it will not expand with concentration
of 40% SF6 and 60% air
e. there is no electro-physiological
evidence fo damage to photo-receptor
7. True statements regarding
optic nerve:
a. the fibres of the optic
nerve are the axons of the cells in the ganglionic
layer of the
retina
b. the fibres of the optic nerve
unmyelinated
c. their sheaths are formed by Schwann
cells
d. it is comparable to a tract within
the central nervous system
e. it leaves the orbital cavity
through the optic canal
8. Major problems associated with
massive blood transfusions include;
a. underlying coagulopathy
b. thrombocytopaenia
c. lack of coagulation faction V
and VIII
d. hyperkalaemia
e. hypothermia
9. Blood supply of the orbit:
a. the principle arterial
supply of the orbit and its structures derives from
the ophthalmic
artery
b. the ophthalmic artery is the
second major branch of the intracranial
portion of the
internal carotid artery
c. the ophthalmic artery passes
beneath the optic nerve and accompanies
it through the
optic canal into the orbit
d. the first intraorbital branch
of the ophthalmic artery is the central retinal
artery which
enters the optic about 8-15 mm behind the globe.
e. other branches of the ophthalmic
arteries include the long and short
posterior ciliary
arteries.
10. Concerning the para-nasal
sinuses:
a. the maxillary is well
developed at birth
b. the maxillary sinus is supplied
by the intraorbital nerve
c. the frontal sinus appears as
a narrow slite at birth
d. the sphenoidal sinus is supplied
by the shenoidal nerve
e. the middle the posterior ethmoidal
air cells drains into the middle meatus.
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