1. Release of which of the following peptides leads to an increase in the secretion of pancreatic enzymes into the small intestine? Motilin Secretin Cholecystokinin Gastrin 2. Which of the following controls the salivary secretion? Gastrin Secretin Parasympathetic nervous system CCK 3. ST segment of ECG corresponds to Ventricular repolarisation Ventricular depolarization Atrial depolarisation AV conduction 4. Windkessel effect in large arteries perform what function Prevent fluctuation in BP Exchange of respiratory gases Maintain intravascular volume provide peripheral resistance 5. An increase in the concentration of 2,3 biphosphoglycerate (2,3DPG) may be seen in all of the following except Hypoxia Anemia Inosine Hypoxanthine 6. Conversion of angiotensin-I to angiotensin-II occurs in Lung RBCs Liver kidneys 7. Release of neurotransmitter from presynaptic vesicles is an example of Facilitated diffusion Exocytosis Simple diffusion Active transport 8. Which of the following situations will lead to increased viscosity of blood Fasting state multiple myeloma amyloidogenesis Hypoglycemia 9. Chemoreceptors are located in which area Medulla Arch of aorta Bifurcation of carotid artery All of the above 10. rods and cones differ in all except wavelength signal transduction light sensitivity acuity 11. carbon monoxide transfusion in lungs is diffusion limited as diffusion of CO across blood barrier is slow carboxy hemoglobin has high avidity base of lung is poorly ventilated pCO2 rises in blood immediately on exposure 12. Constriction of which of the following types of blood vessels is most important for minimizing the decrease in mean systemic filling pressure caused by loss of 1 liter of blood? Capillaries Venules and veins Arterioles Aorta and large arteries 13. clearance test for creatinine measures concentrating ability early loss of renal function tubular secretion glomerular filtration rate 14. Nitrogen washout method is used for estimating Diffusion capacity Functional residual capacity Tidal volume Dead space volume 15. A decrease in which of the following parameters would tend to increase the glomerular capillary hydrostatic pressure? Bowman’s capsular hydrostatic pressure Efferent arteriolar resistance Afferent arteriolar resistance Capillary filtration coefficient 16. What role do the lungs play in the pathogenesis of systemic hypertension? The alveolar capillaries contain angiotensin-converting enzyme (ACE) The alveolar capillaries contain antidiuretic hormone (ADH) The alveolar capillaries contain aldosterone The type II pneumocytes contain aldosterone 17. Pulmonary circulation is characterised by Vasoconstriction in response to hypercapnia vasoconstriction in response to hypoxia Resistance is greater than systemic circulation vasodilation in response to hypoxia 18. difference between stem cells and progenitor cells is progenitor cells cant differentiate further while stem cells can stem cells can form all hematogenous cell lineages while progenitor cells cannot stem cells are only present in bone marrow meiosis is seen in stem cells 19. all of the following are true ablout intestinal motility except increased by acetylcholine increased by cholecystokinin does not depend upon gastric motility increased by distension 20. Role of bile salts Emulsification of lipids Formation of lipid bilayer Vit B12 absorption Fatty acid degradation Loading … Question 1 of 20
