Physiology #7

1. Least conduction velocity is seen in

2. Which of the following lung volumes or capacities cannot be measured directly using simple spirometry?

3. An infant has a coarctation of the aorta that reduces renal blood flow to 50% lower than normal. Which of the following is increased in this infant?

4. A student volunteers to have his lung volumes and capacities measured. He is instructed to breathe several times until the helium has equilibrated between the spirometer and his lungs, and then exhale as much air as he possibly can. Calculations are made to determine the amount of air remaining in his lungs, which is called the

5. Chemoreceptors are located in which area

6. fetal hemoglobin has higher affinity for oxygen due to

7. which of the following is the active form of calcium in circulation

8. Which of the following is most likely to be decreased during resting conditions for a patient that has been severely anemic (Hb = 6.0 g/dL) for several months?

9. which of the following is required for conversion of prothombin to thrombin

10. clearance test for creatinine measures

11. A decrease in which of the following parameters would tend to increase the glomerular capillary hydrostatic pressure?

12. A 3-year-old child has inhaled a peanut that has lodged in the right mainstem bronchus, largely occluding it. The child is cyanotic, with a PO2 of 60 mm Hg. Which of the following mechanisms best accounts for the child’s hypoxemia?

13. C ‘wave in JVP is due to

14. capacitance of sperms take place in

15. basal metabolic rate depends most closely on

16. Glomerular filtration of a substance depends upon

17. Least diffusible ion among following

18. Which of the following binds to von Willebrand factor at the platelet membrane?

19. An increase in the concentration of 2,3 biphosphoglycerate (2,3DPG) may be seen in all of the following except

20. Peristalsis of ureter depends on