A:-blockage of inhibitory effect of dopamine on prolactin secretion due to compression of pituitary stalk leading to
moderate elevation of prolactin levels

B:-low serum values of prolactin obtained by radioimminoassay when serum prolactin levels are very high

C:-very low levels of serum cortisol following pituitary apoplexy

D:-high levels of ADH following pituitary surgery

Correct Answer:- Option-B
Question39:-Which of the following drain into the cavernous sinus?

A:-superior petrosal sinus

B:-inferior petrosal sinus

C:-superior ophthalmic vein

D:-vein of Labbe

Correct Answer:- Option-C
Question40:-A 60 years old man comes to the emergency department following a Road traffic accident. He complains of

paraethesia of both upper limbs and bilateral hand grip weakness. On examination there was grade 3 power of both upper
limbs with bilateral hand grip weakness. The motor power was normal in both lower limbs. The most likely diagnosis ‏يا‎

A:-Anterior cord syndrome
B:-Posterior cord syndrome
C:-Central cord syndrome
D:-Brown-Sequard syndrome
Correct Answer:- Option-C
Question41:-Late subacute subdural hematoma is most likely to display which one of the characteristics ‏آه‎ 187
A:-T1 hyperintense T2 hypointense
B:-T1 isointese T2 hyperintense
C:-T1 hyperintense T2 isointense
D:-T1 hyperintense T2 hyperintense
Correct Answer:- Option-D
Question42:-Which of the following utilizes Cobalt 60 source of photon production?
A:-LINAC based radiosurgery
B:-Proton beam therapy
C:-Gamma knife surgery
D:-Carbon ion therapy
Correct Answer:- Option-C
Question43:-Which of the following is horizontal gaze center?
A:-Paramedian pontine reticular formation
B:-Medial longitudinal fasciculus
C:-Superior colliculus
D:-Rostral interstitial nucleus of MLF
Correct Answer:- Option-A
Question44:-Which of the following statements is LEAST accurate regarding the Neurofibromatosis Type 27
A:-Presence of Bilateral vestibular schwannoma
B:-Unilateral vestibular schannoma and family history of NF2 can be considered as a diagnostic criteria
C:-Juvenile posterior subcapsular cataracts are common in NF2 patients
D:-Caused by a mutation or deletion of the neurofibromin gene on the long arm of chromosome 17
Correct Answer:- Option-D
Question45:-Which of the following screw placement may be risky in presence of a normal anatomical variant ponticulus
ponticus?
A:-C1 lateral mass screw placement
B:-C2 pars screw placement
C:-C2 pedicle screw placement
D:-C1-C2 transarticular screw placement
Correct Answer:- Option-A
Question46:-Tectorial membrane is a continuation വ്‌
A:-Anterior longitudinal ligament
B:-Posterior longitudinal ligament
C:-Ligamentum flavum
D:-Interspinous ligament
Correct Answer:- Option-B
Question47:-Which of the following tracts carries pain and temperature sensation?
A:-Anterior spinothalamic tract
B:-Lateral spinothalamic tract