Marfan syndrome – MCQ Which of the following is not a feature of Marfan syndrome? a) Arm span more than the height b) Upper segment/lower segment ratio more
Vasodilator – MCQ – Answer Which of the following is a vasodilator – Correct Answer: b) Bradykinin Other vasodilators are adenosine, nitric oxide, prostacyclin and endothelium-derived hyperpolarizing factor.
Pressure changes during respiration – MCQ – Answer Which of the following statements is wrong? – Correct Answer: c) Venous return to left heart increases in inspiration Venous
Pressure changes during respiration – MCQ Which of the following statements is wrong? a) Intrathoracic pressure falls during inspiration b) Blood flow to the right heart increases in
Vasodilator – MCQ Which of the following is a vasodilator: a) Norepinephrine b) Bradykinin c) Angiotensin II d) Endothelin I Click here for the correct answer
Symptomatic coronary narrowing – MCQ – Answer Coronary narrowing by atheromatous plaque becomes symptomatic if the cross sectional area is reduced by –% – Correct Answer: d) 70%
Blood vessel radius and resistance – MCQ Relation between the resistance of a blood vessel and its radius is governed according to Poiseuille’s Law. If vessel radius decreases,
Symptomatic coronary narrowing – MCQ Coronary narrowing by atheromatous plaque becomes symptomatic if the cross sectional area is reduced by –%: a) 40% b) 50% c) 60% d)
Determinant of LV preload – MCQ – Answer Which of the following is not a determinant of left ventricular preload? – Correct Answer: d) Aortic pressure Aortic pressure
Receptor in SA node – MCQ – Answer Under resting conditions, activity of which of the following receptors predominate in the SA node? – Correct Answer: d) Muscarinic