1. Which of the following vascular structures contains the largest proportion of the total blood volume in a normal individual?

Question 1 of 20

2. which of the following is not a physioogical method of heat loss from the body

Question 2 of 20

3. With time, blood stored in a blood bank tends to become relatively depleted of 2,3- diphosphoglycerate (2,3-DPG). What effect does this have on the hemoglobin-oxygen dissociation curve?

Question 3 of 20

4. A newborn infant has multiple hemorrhages. Clotting studies demonstrate an elevated prothrombin time and elevated INR. An abnormality of which of the following biochemical processes is likely present in this patient?

Question 4 of 20

5. Amyline is secreted by which cells of islet of Langerhans

Question 5 of 20

6. Carbon dioxide is transported in blood by a variety of mechanisms.Which of the following is quantitatively the most important method for transporting CO2?

Question 6 of 20

7. carotid body regulates

Question 7 of 20

8. In colon absorption of what takes place:

Question 8 of 20

9. Wernicke's encephalopathy is due to deficiency of:

Question 9 of 20

10. the site where myosin heads bind to actin in skeletal muscles are covered by

Question 10 of 20

11. Penile erection is mediated by

Question 11 of 20

12. A man competing in a weightlifting competition lifts 325 lb over his head and holds it there for 5 seconds. Suddenly, his arms give way and he drops the weight to the floor. Which of the following receptors is responsible for this sudden muscle relaxation?

Question 12 of 20

13. in a normal person which of the following occurs when he becomes supine from a standing position

Question 13 of 20

14. In the clotting process, as the hemostatic plug develops, fibrin polymerizes into monomeric threads that are held together by noncovalent bonds. Which clotting protein increases the strength of the clot by cross-linking the newly formed fibrin threads?

Question 14 of 20

15. Which of the following methods is used for calculation of anatomical dead space

Question 15 of 20

16. Absence of which of the following cell types is responsible for loss of vitamin B12 absorption?

Question 16 of 20

17. All are true about reticular activating system except

Question 17 of 20

18. Which hormone stimulates respiration?

Question 18 of 20

19. absorption of dietary iron from GIT is not affected by simultaneous intake of

Question 19 of 20

20. An increase in which of the following best explains the mechanism by which the cardiac output increases in severe anemia?

Question 20 of 20