271. Which of the following does not pass through cavernous sinus ? A. Occulomotor ( III) nerve B. Traochlear nerve C. Medial cerebral artery D. Trigeminal nerve ✅ The correct answer is option C. Medial cerebral artery.
272. Internal jugular vein is a continuation of______________? A. Common Facial Vein B. External Jugular Vein C. Sigmoid Sinus D. Superior Petrosal Sinus ✅ The correct answer is option C. Sigmoid Sinus.
273. Which of the following muscle is attached to posterior part of pterygomandibular raphe ? A. Lateral pterygoid B. Buccinator C. Superior constrictor D. Medial pterygoid ✅ The correct answer is option C. Superior constrictor.
274. Broca’s area is localized in______________? A. Superior temporal gyrus B. Parietal lobe C. Inferior frontal lobe D. Angular gyrus ✅ The correct answer is option C. Inferior frontal lobe.
275. Spheno mandibular ligament is developed from________________? A. first arch B. Second arch C. Third arch D. Fourth arch ✅ The correct answer is option A. first arch.
276. Which vertebra has the most prominent spine______________? A. C2 B. C7 C. T10 D. L2 ✅ The correct answer is option B. C7.
277. Neural tube formation occurs on___________? A. 18 to 23 days post fertilization and is the second stage of craiofacial development B. 28 to 38 days post fertilization and is the third stage of craniofacial development C. 42 to 55 days post fertilization and is the fourth stage of craniofacial development D. 17 the day post fertilization and is the first stage of craniofacial development ✅ The correct answer is option A. 18 to 23 days post fertilization and is the second stage of craiofacial development.
278. Which of the following structures is least likely to be damaged during mandibular 3rd molar extraction___________? A. Lingual artery B. Lingual nerve C. Inferior alveolar nerve D. Inferior alveolar artery ✅ The correct answer is option A. Lingual artery.
279. Common cartotia artery divides to ICA & ECA at______________? A. Cricoid cartilage B. Thyroid cartilage C. 1st tracheal ring D. Cricothyroid membrane ✅ The correct answer is option C. 1st tracheal ring.
280. Which of the following is the normal arrangement of lingual nerve and vessels in the tongue from medial to lateral____________? A. Nerve, Artery and vein B. Artery , Nerve and vein C. Vein, Artery and Nerve D. Nerve, Artery ✅ The correct answer is option B. Artery , Nerve and vein.