A. Closure of the pulmonary valve
B. Rapid filling of the left ventricle
C. Closure of the aortic valve
D. Contraction of the atria
✅ The correct answer is option C. Closure of the aortic valve.
DNA double helix is bound by_____________?
A. Covalent bond
B. Hydrogen bond
C. Disulfide linkage
D. Vander wall forces
✅ The correct answer is option B. Hydrogen bond.
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.
1697. The vermilion border requires frequent moistening because_____________?
A. It contains more No. of sweat glands
B. It contains more do. of sebaceous glands
C. It contains less number of sebaceous glands
D. It contains less number of sweat glands
✅ The correct answer is option C. It contains less number of sebaceous glands.
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.
1691. Delay in blood coagulation results from________________?
A. Human thrombin
B. Heparin
C. Ferric chloride
D. Vit- K
✅ The correct answer is option B. Heparin.
Kinase requires_______________?
A. MN++
B. Cu++
C. Mg++
D. Inorganic phosphate
✅ The correct answer is option C. Mg++.
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.
1683. Which of the following cell type is not a precursor of erythrocyte____________?
A. PR erythroblast
B. Norm oblast
C. Reticulocyte
D. Myeloblast
✅ The correct answer is option D. Myeloblast.
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.