Past Part 1 MRCOphth: 2
1. The medial wall of the orbit is formed by:
a. the frontal process of the maxilla
b. ethmoid bone
c. lacrimal bone
d. the greater wing of sphenoid
e. the frontal bone

2. Paranasal sinuses:
a. the posterior ethmoidal sinuses open in the superior meatus
b. the frontal sinus opens into the superior meatus
c. the anterior ethmoidal sinus opens into the superior meatus
d. the lymphatics of the anterior, middle and posterior ethmoidal sinuses all drain into 
    the retropharyngeal nodes
e. the medial wall of the maxillary sinus is formed solely by the maxilla

3. Skull:
a. maxillary nerve enters the pterygopalatine fossa via the foramen ovale
b. the middle meningeal artery goes through the foramen spinosum in the middle cranial 
c. the greater petrosal nerve goes through the foramen rotundum before forming the 
    nerve of pterygoid canal
d. the jugular foramen transmits the inferior petrosal sinus, the ninth, tenth, eleventh 
    cranial nerves and the large sigmoid sinus from front to back
e. the lesser petrosal nerve enters the foramen ovale

4. Vascular supply of the eyeball:
a. anastomosis exists between the dorsal nasal branch of ophthalmic artery and the 
    angular artery fo the facial artery
b. anastomosis exists between recurrent meningeal branch of the lacrimal artery and 
    the middle meningeal branch of the internal maxillary artery
c. the cilio-retinal artery present in 50% subjects will enter the retina on the temporal 
    side of the optic disc
d. most venous blood from the eyeball drain into the superior ophthalmic vein and 
    enters the cavernous sinus via the inferior orbital fissure
e. the integrity of both retinal and choroidal circulation are required for vascular supply 
    to the eye

5. Hypokalaemia occurs in:
a. Addison's disease
b. Conn's syndrome
c. starvation
d. vomiting
e. surgical trauma

6. The following structures are mesodermal in origin:
a. the dilator muscle fo the iris
b. the iris stroma
c. the ciliary muscle
d. the ciliary epithelium
e. levator palpebrae superioris

7. The following are situated in the dorsal midbrain:
a. nucleus of Cajal
b. nucleus of the posterior commissure
c. rostral interstitial nucleus of the medial longitudinal bundle
d. third cranial nerve nucleus
e. Edinger-Westphal nucleus

8. Abnormal colour vision may be found in patients on treatment with:
a. digitalis
b. chloroquine
c. gold
d. indomethacin
e. isoniazid

9. The following statements are true:
a. the larger the sample size, the greater the standard error
b. a value of p<0.01 is less significant then p>0.01
c. data which is non-parametric is assumed to be normally distributed
d. in a t-test, the null hypothesis is assumed in all cases
e. in a normal distribution the mean, mode and median are equal in value

10. Molluscum contagiosum:
a. is most common in young adults
b. is caused by infestation with lice
c. lesions are waxy nodules
d. may primarily involve the lid skin or conjunctiva
e. infected cells contain eosinophilic inclusion bodies.

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