2006 - Physio Term Test 2

2006 - Physio Term Test 2 - W2, 05/01:: (it 1. Mark B in...

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Unformatted text preview: W2, 05/01:: (it 1. Mark B in your computer sheet PHYSIOEX 2. If a sample of whole blood is agglutinated by: A. anti-B serum but not by anti—A serum, it is Group A. B. anti-B serum and by anti-A serum, it is Group 0 C. anti-A serum but not by anti-B serum, it is group B D. anti-Rh serum, it is Rh positive. 3. In a person with anemia, you would expect to find: A) white blood cells below normal B) amount of hemoglobin in the blood (g/ 100 ml) is reduced C) red blood cell membrane always very fragile D) an increase in intrinsic factor production in the stomach 4. With regards to cholesterol, identify the one INCORRECT statement A) Cholesterol is an essential factor in homeostasis B) Cholesterol is used in manufacturing bile salts C) Most of the cholesterol that your body needs is made by the liver D) High blood cholesterol levels are above 200 mg/l 00 ml of blood E) Kidney has high levels of cholesterol Viscosity Length Pressu re 5. In the above “Vessel Resistance” experiment, the radius of the tube is set at 3.0 m. If the radius was reduced by half to 1.5 mm, the resistance of the tube will be by . ' A) increased: 2 fold ' B) increased : 16 fold C) decreased: 2 fold D) decreased : 16 fold E) none of the above r 1 "Pump Mechanies . .Ia lU$(mm) 7- 6. In the above “Pump Mechanics” experiment, the pump piston in the resting position represents , and the stroke volume is . A) systole : 170 ml B) systole : 70 ml C) diastole : 170 ml D) diastole: 70 ml E) diastole : 120 ml 7. In the same experiment, you can increase the Flow by: A) increasing the pump pressure B) increasing the right beaker pressure C) decreasing the right flow tube radius D) both A and C ‘ E) all of the above V Experiment, 8. In the above “Direct Heart Stimulation” experiment, a single stimulus tight at the beginning of ventricular contraction will result in: A) no change in the trace B) the appearance of an extra systole C) the appearance of a compensatory pause D) both A and C ' E) none of the above '3 Experiment- r -- ‘ ~ ’ '- steamers ememaas m M _, 9. In the above “Modifiers of Heart Rate” experiment, what is the effect of digitalis on the heart rate? A) no change in heart rate B) increase in heart rate C) decrease in heart rate D) heart rate becomes zero E) none of the above 10. In the same experiment, the addition of Potassium ions ________ the heart rate and the heart in diastole. A) decreases : stops B) decreases : speeds up * C) increases : stops D) increases : speeds up E) doesn’t change : stops v LECTURES ll. 12. 13 14. Which of the factor(s) prevent platelet plug formation in healthy blood vessels? A) prostacyclin only B) nitric oxide only C) plasmin only D) prostacyclin and plasmin E) prostacyclin and nitn'c oxide The blood cells that are critical in initiating inflammation are: A) neutrophils B) eosinophils C) basophils D) monocytes B) lymphocytes You are fortunate to work with a medical team sent to set-up a hospital in a remote village in an under developed country. You are made in charge of stocking the emergency room blood supply. Having taken PSLZOO/ZOI, you decide (rightly so) to stock up on a type of blood that could be used in situation when critical patients that are brought in, who may need blood transfusion immediately before there is any time to “type” the patients blood. What type of blood would you advise to be stocked for the emergency rooms to keep on hand for critical patients that come in? A) O Rh‘ B) O Rh+ C) AB Rh‘ D) AB Rh+ E) None of the above Antibodies help eliminate antigen in all of the following ways except, A) agglutination B) opsonization C) coagulation D) ' activation» of the complement B) activation of natural killer (NK) cells 15. 16. 17. 18. 19. Former US vice president, Al Gore’s only son, when 6 years old, was stuck by a car in April 1989 when he darted into the path of a car after attending a Baltimore Orioles-Boston Red Sox baseball game with his father. In the accident the child suffered a broken thigh, broken shoulder blade and broken ribs. He also lost 30% of his blood during the accident. On arriving at the hospital, a number of tests were conducted on the lad. His hematocrit would have: A) decreased B) stayed the same as before the accident C) increased D) would not have been possible to measure E) doubled All of the cell types are involved in immune response except A) helper T cells B) cytotoxic T cells C) interferons D) B cells E) macrophages Identify the ONE INCORRECT STATEMENT. A) An immunization such as the one against chicken pox, confers lifelong immunity without causing the disease B) Passive immunity does not involve the individual’s immune system C) Rheumatoid arthritis results from a humoral autoimmune response D) In the lifetime of an active, mature T cell it will not travel through the thymus gland - E) Helper T cells play a role in both the humoral and cell—mediated responses - An infant who has experienced multiple bacterial infections since birth has been diagnosed with a macrophage deficiency. His A) certain non specific body defense functions will be impaired B) non—specific body defense functions will be totally impaired C) specific immune responses will not be affected D) overall immunity is unaffected E) Kupffer cells in the liver will function normally Activation of prothrombin requires: A) Factor VIII, Ca and PF3 B) Tissue factor and VIIa complex C) Xa, V, Ca, PF3 D) IXa VIII, Ca, PF3 E) XIIIa, VI, Ca, PF3 20. It is impossible for a type 0 baby to have a type mother. A) AB B) O C) O D) A E) B 21. Which of the following chambers of the heart has the thickest musculature? A) right atrium B) right ventricle C) left atrium D) left ventricle E) both ventricles have equal thickness and are thicker than the atria 22. Closure of the atrioventricular valves occurs when A) the valves contracts B) pressure inside the ventricle is less than pressure inside the atrium C) pressure inside the ventricle is greater than pressure inside the atrium D) the papillary muscle contracts E) the atrium contracts 23‘ Conduction through which of the following is slow to allow atria to contract before the ventricle? A) atria B) SA node C) AV node D) Bundle of His E) Purkinje fibers 24. is responsible for the repolarization of pacemaker cells. A) An increase in PCa (Permeability to Calcium ions) B) An increase in PM C) A decrease in PK D) An increase in PK E) A decrease in PM 25. The rapid depolarization phase of a contractile cell is phase . A) O ‘ B) 1 C) 2 D) 3 E) 4 26. Which of the following components of an ECG represents ventricular depolarization? A) P wave B) QRS complex C) T wave D) PQ interval E) TQ segment 27. During which phase of the cardiac cycle are all four heart valves open? A) ventricular filling B) isovolumetric contraction C) ventricular ejection D) isovolumetn'c relaxation E) All four heart valves are normally NEVER open simultaneously. 28. Blood is ejected from the left ventricle once pressure within A) the ventricle is greater than pressure within the aorta B) the ventricle is less than pressure within the aorta C) the ventricle is greater than pressure within the pulmonary artery D) the ventricle is less than pressure within the pulmonary artery E) the muscle of the pulmonary semilunar valve relax 29. An increase in heart rate can be mediated through A) a decrease in parasympathetic nervous activity only B) a decrease in sympathetic activity only C) an increase in sympathetic activity only D) a decrease in sympathetic activity and an increase in parasympathetic activity B) an increase in sympathetic activity and a decrease in parasympathetic activity 30. An increase in end-diastolic volume will cause which of the following? A) an increase in stroke volume B) an increase in heart rate C) a decrease in cardiac output D) both A and C E) all of the above 31. Which of the following would decrease the rate of blood flow through a blood vessel ‘ A) constriction of the blood vessel B) increased length of the blood vessel C) increased viscosity of the blood D) both A and B E) A,BandC 32. The high compliance of veins allows them to A) act as pressure reservoirs B) accommodate large volume of blood with little change in pressure C) rapidly change central venous pressure with small change in blood volume D) hold only small volumes of blood ‘ E) provide the driving force for the movement of blood through‘the vasculature during systole 33. Given that the net filtration of fluid out of the capillaries averages about 3 litres per day, how is blood volume maintained in light of this apparent fluid loss? A) Fluid is returned to the blood as lymphatic fluid by the lymphatic system. B) The net filtration is equally balanced by absorption. C) Gravity moves the fluid to the lowest point in the body, where the fluid is absorbed. . ‘ D) While fluid moves across the capillary, it tends to move inward across veins. E) The kidneys are involved in the reabsorption of the remaining fluid. 34. Which of the following would decrease central venous pressure? A) activity of skeletal muscle B) increased respiratory activity C) increased venomotor tone D) increased blood volume E) standing up too quickly 35. In response to an increase in tissue metabolic activity, tissue oxygen concentrations , which causes a(n) A) decrease : active hyperernic response B) decrease : increase in tissue ischemia C) decrease : dilation of the arterioles D) increase : active hyperernic response E) increase : constriction of arterioles 36. are responsible for the detection of mean arterial pressure. A) Venous baroreceptors B) Arterial baroreceptors C) Aortic chemoreceptors D) Thermoreceptors E) Medullary chemoreceptors ‘ ...
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This note was uploaded on 04/04/2011 for the course PSL 201 taught by Professor Wojtowicz during the Winter '08 term at University of Toronto.

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2006 - Physio Term Test 2 - W2, 05/01:: (it 1. Mark B in...

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