1. in a normal person which of the following occurs when he becomes supine from a standing position there is an immediate increase in venous return decreased perfusion at the apex of lung heart rate increases and settles to a higher level cerebral blood flow increases 2. Pulmonary circulation is characterised by Vasoconstriction in response to hypercapnia vasoconstriction in response to hypoxia vasodilation in response to hypoxia Resistance is greater than systemic circulation 3. Which of these substance is secreted by beta cells of pancreas along with insulin pancreatic polypeptide Amylin Glucagon like peptide somatostatin 4. Least diffusible ion among following K + Na + urea Cl – 5. If a creatinine clearance of 100 mL/min changes to 50 mL/min over 1 year, assuming that there has been no change in diet, which of the following physiologic changes can be expected? A 2-fold decrease in creatinine excretion rate A 2-fold increase in plasma creatinine concentration A 2-fold increase in creatinine excretion rate 2-fold decrease in blood urea nitrogen concentration 6. which of the following is the active form of calcium in circulation ionized calcium phosphate bound calcium protein bound calcium albumin bound calcium 7. Nitrogen washout method is used for estimating Tidal volume Functional residual capacity Diffusion capacity Dead space volume 8. Which of the following plant components is not fermented by gastrointestinal microorganisms Lignin Hemicellulose Pectin Cellulose 9. christmas disease occurs due to deficiency of factor XI factor IX factor VIII factor X 10. In which portion of the kidney tubule is most water normally reabsorbed? Loops of Henle Distal tubules Cortical collecting duct Proximal tubule 11. Inner plexus in GIT is Auerbach plexus submucosal plexus Myentric plexus mucosal plexus 12. regarding transport of substances through the cell membrane all are true except glucose is transported via facilitated diffusion active transport is an energy deriven process facilitated diffusion requires energy facilitated diffusion requires carrier protein 13. mean circulatory filling ressure is arterial pressure taken at the point when heart stops beating diff between central venous pressure and central arterial pressure mean arterial pressure difference between systemic and pulmonary arterial pressure 14. Caisson disease Gas embolism Tumor embolism Fat embolism Amniotic fluid embolism 15. a 32 year old high altitude mountaineer is observed to have a hematocrit of 70 percent .which of the following represents the most likely cause polycythemia with increased red cel mass polycythemia due to hemoconcentration polycythemia with high altitude pulmonary edema relative polycythemia due to dehydration 16. Which of the following vascular structures contains the largest proportion of the total blood volume in a normal individual? Venules and veins Capillaries Aorta and large arteries Arterioles 17. Angiotensin II causes all of the following, except Vasodilatation Stimulation of thirst Increased ADH secretion Aldosterone secretion 18. Ptylin is secreted by Duodenal gland Pancreatic gland Salivary gland Gastric gland 19. in a seriously ill patient addition of amino acids in diet results in a positive nitrogen balance.the mechanism for this is increased secretion of insulin increased proportion of amino acids from diet increased growth hormone secretion enhanced rate of gluconegenesis 20. Increasing urine flow rate from 1 mL/min to 10 mL/min will significantly increase the clearance of inulin urea creatinine penicillin Loading … Question 1 of 20
