9. Leukocytes can leave the blood vessels and enter tissues. a. true b. false 10. Which of the following is not considered a granular leukocyte? a. basophil b. eosinophil c. neutrophil d. monocyte 11. Approximately how many miles of blood vessels are in the body? a. 60 b. 600 c. 6,000 d. 60,000 12. Which is the outermost layer of the heart? a. endocardium b. pericardium c. myocardium d. epicardium 13. Which layer of the heart contains the heart muscle? a. endocardium b. epicardium c. myocardium d. pericardium 14. Which layer of the heart forms the surface of the valves? a. endocardium b. epicardium c. myocardium d. pericardium 15. Which of the following disorders are most often caused by rheumatic fever? a. pericarditis b. cardiac tamponade c. myocarditis d. endocarditis
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5) The heart is enclosed in a double-walled sac called the ... A) Pericardium B) Endocardium C) Myocardium D) Peritoneum 6) The tricuspid valve is indicated by number ... A) 3 B) 11 C) 12 D) 13 7) The pulmonary arteries carry blood ...A) oxygenated B) Deoxygenated C) Mixed D) Neither 8) The right atrium is indicated by number ... A) 2 B) 6 C) 9 D) 12 9) The mitral valve is indicated by number ... A) 3 B) 11 C) 12 D) 13 10) The rate at which the heart contracts depends on the ... A) Mitral valve B) Aortic valve C) Sinoatrial node D) right atrium
Sri K.
The endocardium of the heart is composed of three layers. Describe their structure and also explain how the thickness of the endocardial layer varies between different chambers of the heart (5 points). 2. Match each of the following terms with its description (5 points): A. Parietal pericardium B. Myocardium C. Visceral pericardium D. Chordae tendinae E. Papillary muscles A. Smooth mesothelium covering heart B. Cardiac muscle that makes up bulk of heart C. Raised mounds of cardiac muscle D. Tethers that attach atrioventricular valves to heart wall E. Flat mesothelium lining pericardial sac
19. Which of these is not part of the cardiac conduction system? A. the sinoatrial (SA) node B. the tendinous cords (TC) C. the atrioventricular (AV) node D. the atrioventricular (AV) bundle (bundle of His) E. the Purkinje fibers 20. Pyrogen is a substance that causes A. inflammation. B. opsonization. C. complement fixation. D. cytolysis. E. fever. 21. Lymphatic vessels recover about ______________ of the fluid filtered by capillaries. A. 5% B. 15% C. 25% D. 50% E. 85% 22. Lymph is similar to blood plasma, but very low in A. protein. B. carbon dioxide. C. metabolic waste. D. electrolytes. E. sodium and potassium. 23. All these can lead to edema except A. obstruction of lymphatic vessels. B. liver disease. C. famine. D. hyperproteinemia. E. hypertension. 24. Atrial depolarization causes A. the P wave. B. the QRS complex. C. the T wave. D. the first heart sound. E. the quiescent period. 25. When the left ventricle contracts, the _____ valve closes and the _____ valve is pushed open. A. bicuspid; pulmonary B. tricuspid; pulmonary C. tricuspid; aortic D. mitral; aortic E. aortic; pulmonary 26. Mitral valve stenosis causes blood to leak back into the ___________ when the ventricles contract. A. left atrium B. right atrium C. aorta D. pulmonary trunk E. pulmonary arteries 27. These are the most abundant agranulocytes. A. macrophages B. eosinophils C. monocytes D. lymphocytes E. neutrophils 28. The volume of blood ejected by each ventricle in one minute is called A. the cardiac reserve. B. the preload. C. the afterload. D. the stroke volume. E. the cardiac output.
Madhur L.
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