1. Least diffusible ion among following Na + K + Cl – urea 2. the sigmoid nature of Hb-O2 dissociation curve is because of alpha chain has more affinity for O2 than beta chain binding of one O2 molecule increase the affinity for the next O2 molecule beta chain has more affinity for alpha chain hemoglobin is acidic in nature 3. Cardiac output is increased by all except Standing from lying down Exercise Pregnancy hot atmosphere 4. Goblet cells secrete HCL Serotonin Mucus pepsin 5. microvilli in the intestine helps to counteract viral infection by forming immunoglobulins increasing absorption increase th eno f receptors increase in cell surface area 6. A 60-year-old man presents with signs of hypoxemia due to hypoventilation. Which of the following could be the cause of hypoxemia in this patient? Anemia Fibrosis Right-to-left cardiac shunt Chronic obstructive pulmonary disease (COPD) 7. Which of the following is found in the respiratory zone of the lung? Main bronchi Mucous cells Type I epithelial cells Goblet cells 8. Dicrotic notch is caused by Opening of aortic valve Closure of mitral valve Opening of mitral valve Closure of aortic valve 9. In which segment of the systemic circulation does the greatest decrease in blood pressure occur? Capillaries Small arteries Aorta and large arteries Arterioles 10. A patient with severe anemia may have which of the following symptoms? Cyanosis Bradycardia Low stroke volume Wide pulse pressure 11. all of the following statements about bronchial circulations are true except provide nutritive function to lung contribute to gaseous echange cause venous admixing of blood contribute 2 % of systemic circulation 12. During a fast, a brief phase of intense sequential contractions begins in the stomach and gradually migrates to the ileum. Release of which of the following intestinal hormones is most likely responsible for this observed effect? Motilin Gastrin-releasing peptide Cholecystokinin Gastrin 13. vagal stimulation of the heart causes increased R-R interval in ECG increases heart rate increased cardiac output increased force of heart contraction 14. small airways has laminar air flow because very small diameter reynolds number more than 2000 extremely low velocity low cross sectional area 15. Function of myenteric plexus is to regulate Motility Local blood flow GI secretion All of the above 16. Largest reserve of energy in body stored as Muscle glycogen Liver glycogen Blood glucose Adipose tissue 17. An elevated level of which of the following substances would identify a specimen as plasma rather than serum? Albumin Fibrinogen Erythrocytes Granulocytes 18. Which of the following indices would be expected to be decreased in a kidney donor after full recovery from the removal of the kidney? Plasma creatinine concentration Creatinine production Creatinine clearance Daily excretion of sodium 19. Bile acids are reabsorbed from Distal jejunum Duodenum Ileum Proximal jejunum 20. In anemia, the concentration of 2,3-DPG is Not changed Decreased Increased A or B Loading … Question 1 of 20
