1. Inhibition of heart by vagus is mediated by which receptorsM1M2NnNmQuestion 1 of 20 2. Which decreases secretion of both insulin and glucagonEpinephrineIncreased blood glucosenoneSomatostatinQuestion 2 of 20 3. Inner plexus in GIT issubmucosal plexusAuerbach plexusMyentric plexusmucosal plexusQuestion 3 of 20 4. In anemia, the concentration of 2,3-DPG isIncreasedDecreasedNot changedA or BQuestion 4 of 20 5. Buffalo hump is seen in:Excess CorticosteroidImmunosuppressi ve treatmentAdrenal insufficiencyAddisons diseaseQuestion 5 of 20 6. Physical examination of a woman with advanced, metastatic lung cancer demonstrates hyperpigmentation of skin, even in areas protected from the sun. ACTH levels are found to be elevated. Tumor inducement of which endocrine organ is most likely?Thyroid glandEndocrine pancreasPituitary glandAdrenal glandQuestion 6 of 20 7. Function of epinephrine and norepinephrine in Fight or Flight response isBradycardiaIncreased blood flow to skinincreased blood flow to musclesBronchoconstrictionQuestion 7 of 20 8. oxygen dependent killing is done throughglutathione peroxidasesuperoxide dismutaseNADPH oxidasecatalaseQuestion 8 of 20 9. Which of the following is most likely to relieve the symptoms caused by hyperventilation?Breathing 100% nitrogenBreathing a 10% oxygen/90% nitrogen mixtureIntravenous administration of bicarbonateBreathing in and out of a plastic bagQuestion 9 of 20 10. Laboratory studies for an alcoholic patient indicate that serum magnesium is depressed. Which of the following findings would be most consistent with this information?Increased bone densityDecreased serum calciumDecreased serum phosphateIncreased plasma parathyroid hormone concentrationQuestion 10 of 20 11. Active tension in a muscle depends uponAerobic capacity of muscleNumber of Muscle fibresNumber of motor units recruitedLength of muscle fiberQuestion 11 of 20 12. Abnormal keratinization of skin is a sign of deficiency ofvitamin B1vitamin Avitamin Cvitamin DQuestion 12 of 20 13. Coronary blood flow regulated byLocal muscle action and reflexesparasympathetic systemSympathetic cholinergic systemSympathetic adrenergic systemQuestion 13 of 20 14. How does cerebellum help in coordination of movementComparing plan and movementby regulating toneBy learningBy reflex activityQuestion 14 of 20 15. Vagal stimulation of the heart causes decrease in heart rate byDecrease conductionDecrease in action potential spikeIncrease in repolarisationDecrease in slope of prepotentialQuestion 15 of 20 16. Korsakoff's psychosis is due to deficiency of vitamin:B3B12B1B6Question 16 of 20 17. Which muscarinic receptor causes dilatation of vesselsM1M4M3M2Question 17 of 20 18. Pulmonary function abnormalities in interstitial lung diseases include all of the following exceptReduced total lung capacityReduced FEV1/FVC ratioReduced vital capacityReduced diffusion capacityQuestion 18 of 20 19. Which of the following regions of the nephron is capable of the greatest level of sodium reabsorption?Thick ascending limb of the loop of HenleDistal convoluted tubuleCollecting ductProximal convoluted tubuleQuestion 19 of 20 20. Thrombomodulin I is produced by all of the following exceptCerebral circulationSplanchnic circulationMuscle circulationSkin circulationQuestion 20 of 20 Loading...