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Transcript
Anatomy and Physiology Quiz 2A April 2, 2015 Name: ______________________________________________ 1. In regards to immunity, which of the following is NOT TRUE? A. B. C. D. E. 2. All of the following are characteristics of the intrinsic conductance system EXCEPT: A. B. C. D. E. 3. The secondary response has a more rapid onset than a primary response The secondary response has a longer duration than a primary response The secondary response targets more types of antigens than a primary response A&B A, B & C All of the following are characteristics of the pacemaker potential EXCEPT: A. B. C. D. E. 5. The AV node can only be activated by the autorhythmic cells in the SA node To reach the purkinje fibers, electrical current must pass through the bundle of His The T wave records the pacemaker potential in the SA node The AV node delays the spread of current from the atria to the ventricles A&C How does the secondary response differ from the primary response? A. B. C. D. E. 4. Artificially acquired passive immunity requires a humoral response Development of naturally acquired active immunity requires repeated exposure to an infective agent Most members of western societies are likely to have artificially acquired active immunity Naturally acquired passive immunity typically only occurs during early life A&B The pacemaker potential can occur in the SA and AV nodes Na+ channels are open in all phases of the pacemaker potential The rising phase of the pacemaker potential results from the efflux of calcium A&C B&C In regards to the characteristics of the specific mechanism of the immune systems, which is NOT TRUE? A. B. C. D. E. Each plasma cell has only one type of antigen receptor Memory cells are produced during all cell mediated responses HLA’s are only present on immune cells During secondary responses, additional memory cells are produced Phagocytosis is often a part of the specific response 6. In regards to the valves and chambers of the heart, which of the following is NOT TRUE? A. The papillary muscles for the AV valves are located in the wall of the ventricles B. The right and left ventricles have the same stroke volume C. The myocardium of the left ventricle is thicker than the right ventricle D. Valves in the pulmonary veins and vena cava prevent the flow of blood into the atria during atrial diastole E. B&D 7. Through which of the following valves will blood pass through first in the pulmonary circuit? A. B. C. D. E. 8. In regards to the coronary vessels, which of the following is TRUE? A. B. ventricular C. D. E. 9. Right AV Left AV Pulmonary semilunar Aortic semilunar Inferior valve of the vena cava The anterior interventricular artery is the first branch off the right coronary artery Blood must pass through the right coronary artery to enter the posterior interartery The left coronary artery gives rise to the marginal branches The anterior and posterior inter-ventricular arteries connect on the posterior surface of the heart A&B In regards to the anatomy of the heart, which of the following is NOT TRUE? A. B. C. D. E. The outer layer of the pericardium is formed from the epicardium Papillary muscles connect the chordae tendonae to the heart wall The myocardium is the thickest layer of the heart The base of the heart lies at the level of the 5th intercostal space A&D For Questions 10 - 11 refer to the following table. 1 2 3 4 5 10. The P wave has occurred The QRS wave has not occurred Ventricular volume is constant Ventricular volume is increasing AV valve is closed 1, 2, 4, 6, 7, 9 1, 2, 4, 6, 8, 10 1, 2, 4, 6, 7 2, 4, 6, 7 2, 4, 6, 8, 10 At the point in the cardiac cycle when EDV has reached its maximum value, which of the following MUST BE TRUE? A. B. C. D. E. 12. AV valve is open SL valve is closed SL valve is open Atrial repolarization is occurring Ventricular depolarization is occurring Prior to atrial systole, which of the following MUST BE TRUE? A. B. C. D. E. 11. 6 7 8 9 10 1. 3, 5, 7 1, 2, 3, 5 & 7 1, 2, 3, 5, 7 & 10 1, 3, 5, 7, 9 1, 3, 5, 7, 10 All of the following are characteristics of the EKG EXCEPT: A. B. C. D. E. The P wave precedes all other EKG waves The QRS results from depolarizing current spreading across the ventricles The P wave The T wave occurs after the QRS For healthy individuals, the QRS wave always occurs after atrial repolarization For Question 13, refer to the following table. I II III IV V 13. The patient may be having an allergic response The antigen is present on a mucous membrane The patient has been exposed to a novel antigen The antigen is a blood borne toxin The complement system has been activated A patient has elevated IgE and IgM titers. Which of the following can cause these findings? A. B. C. D. E. I & III I, III & V II II & V I, IV & V For Question 14, refer to the following table. I II III IV V 14. Ca2+ levels in the myocardium Time required to achieve threshold Contractile strength ESV Stroke volume Of the factors listed above, which increase when the parasympathetic nervous system is activated? A. B. C. D. E. I & III I, III & V I, III, IV & V II II & IV