Question

1. The layer of the heart that is composed mainly of cardiac muscle and forms the bulk of the
     heart is the
a. endocardium                      b. myocardium                    c. pericardium

2. The chamber of the heart that sends blood to the systemic circulation is the
a. left atrium              b. right ventricle              c. left ventricle                     d right atrium

3. Choose the correct track of pulmonary circuit going to the systemic circuits:
      1. right side of heart   2. lungs    3. left side of the heart     4. aorta       5. inferior vena cave
a. 2, 1, 3, 4, 5              b. 2, 4, 5, 1, 3               c. 4, 2, 3, 1, 5              d. 2, 3, 4, 5, 1

4. The artery that supplies the left atrium and the posterior walls of the left ventricle is the
a. anterior interventricular artery                     b. marginal artery
c. posterior interventricular artery                    d. circumflex artery

5. The valve that connects the left atrium and the left ventricle is the
a. mitral            b. semilunar              c. aortic               d. tricuspid

6. The sequence of the excitation of the heart is:
    1. AV node   2. SA node     3. Purkinje fibers        4. Bundle branches           5. Bundle of His
a. 1, 2, 3, 4, 5           b. 3, 4, 5, 1, 2,                 c. 2, 3, 4, 5, 1                 d. 2, 1, 5, 4, 3

7. The term _____________ refers to the contraction of the heart
a. diastole               b. systole             c. preload

8. The parasympathetic effects on the heart lead to
a. decreased heart rate                             b. increased heart rate
c. increased vagal tone                            d. increased metabolic rate

9. ________ is the stretch of the heart wall due to the load to which a cardiac muscle is subject before shortening.
a. systole                    b. diastole             c. preload              d. afterload

10. The most preventable heart disease is
a. ventricular septal defect                   b. Tetralogy of Fallot
c. atherosclerosis                                  d. coartation of the aorta

11. An ECG provides information about
a. cardiac output                     b. movement of the excitation across the heart
c. coronary circulation            d. valve impairment

12. Freshly oxygenated blood is first received by the
a. right atrium               b. right ventricle              c. left atrium                  d. left ventricle

13. The thick-walled arteries near the heart- the aorta and its major branches are called
a. arterioles                 b. capillaries                 c. muscular               d. elastic

14. Fenestrated capillaries with perpetual open pores are located in the
a. kidneys               b. brain              c. liver              d. spleen

15. The vessels that are 8 to 100 um in diameter and formed when capillaries unite are called
a. pre capillaries                b. venules             c. veins               d. arterioles

16. Alcohol, adrenal hormones, ANP, ADH, Angiotensin II, Nitric Oxide are all part of the
     _______________ controls of blood pressure
a. chemical                  b. neural                c. renal               b. cardiac

17. Which of the following pulses is palpated behind the knee?
a. posterior tibialis             b. brachial                 c. carotid                d. popliteal          e. facial

18. Which of the following pulses is palpated in the groin region?
a. radial                b. dorsalis pedis                c. femoral                 d. brachial          e. apex

19. The following factors are involved in essential hypertension except:
a. Obesity              b. Heredity                c. Arteriosclerosis                    d. Race

20. Most common causes of vascular shock are all of the following except:
a. neurogenic shock                 b. septic shock
c. anaphylactic shock              d. hypovolemic shock

21. The portion of the intrinsic conduction system located in the interventricular septum is the
a. AV node             b. SA node                  c. AV bundle       d. Purkinje fibers

22. The sequences of contraction of the heart chambers is
a. random                                                   b. left chambers followed by the right chambers
c. both atria followed by both ventricles   d. right atrium, right ventricle, left atrium, left ventricle

23. All of the following are arteries that irrigating the heart except:
a. marginal               b. interventricular               c. coronary                  d celiac             circumflex

24. The area of the conduction system that initiates the heartbeat is/are ________
a. SA node            b. Purkinje fibers               c. bundle of His              d. AV node

25. The _____________ decreases heart rate but genially has not effect on the force of contraction.
a. sympathetic stimulation                       b. parasympathetic stimulation                  c. chemical regulation

26. Veins present with the following features except:
a. valves                                             b. transport blood from body to heart
c. lumen wide than arteries                d. Tunica media is the thickest

27.  The left side of the head is drain by the
a. left lymphatic duct             b. right lymphatic duct              c. thoracic duct       d. axillary node

28. The direction of fluid of the lymph is carried away from the heart
a. T            b. F

29. Plasma cells are lymphocytes that
a. produce antibodies                          b. phagocyte foreign substances
c. produce antigens                             d. produce reticular fiber stroma

30. Cells that engulf foreign substances and help activate T cell are
a. T cells            b. B cells             c. Reticular cells              d. Macrophages    e. Plasma cell

31. Lymph nodes bear fewer afferent lymphatic vessels than efferent lymphatic vessels
a. T               b. F

32. The part of the lymph node that house T cell in transit is the
a. medulla                    b. hilus                  c. cortex                     d. capsule

33. All of these organs are part of the lymphatic system except:
a. Spleen                b. Thymus                  c. Pancreas             d. Tonsils              e. Peyer’s patches

34. The lymphoid organ that functions primarily during the first years of life is the
a. Spleen                b. Thymus                  c. Pancreas             d. Tonsils              e. Peyer’s patches

35. Which lymphoid organ stores products of red blood cells, is site for erythropoietin before
      birth, and stores blood platelets?
a. Spleen                b. Thymus                  c. Pancreas             d. Tonsils              e. Peyer’s patches

36. The saclike initial portion of the thoracic duct is the
a. lacteal                   b. right lymphatic duct                 c. cisterna chyli            d. lymph sac

37. The structural framework of lymphoid organs is
a. areolar connective tissue       b. hematopoietic tissue      c. reticular tissue         d. adipose tissue

38. The blood pressure range is greatest in a/an/the:
a. vein              b. venule              c. capillary                  d. artery                 e. arteriole

39. How many different sites are where a pulse can be palpated above the heart?
a. 1                 b. 2                    c. 3                 d. 4                   e. 5

40. Collections of lymphoid tissue (MALT) that guard mucosal surfaces include all of
      following except
a. GI tract                 b. respiratory tract
c. reproductive tract                    d. mediastinum                  e. urinary tract

41. The tricuspid valve is:
a. the left AV valve             b. located in the AV junction        c. the right AV valve

42. The layer over the external surface of the heart also called visceral layer of the heart is the _______
a. endocardium               b. myocardium                   c. epicardium

43. The _______________ , functional supply of the heart, is the shortest circulation in the body.
a. systemic circulation                 b. pulmonary circulation                c. coronary circulation

44. The relaxation of the period of the heart refers to:
a. contraction               b. preload                c. diastole            d. systole

45. The term bradycardia refers to:
a. amount of blood at any given time in the hart                  b. a heart rate slower than 60 beat per minute
c. stretch of the heart with each contraction                         d. an impulse of the AV  of  60 times

46. In Tetralogy of Fallot the chamber of the heart that eventually enlarges (hypertrophies) is the __________.
 a. left ventricle                b. right ventricle                c. left atrium                  d. right atrium

47. The following are factors used as short terms mechanism to control arterial blood pressure except
a. atrial natriuretic peptide                  b. renal regulation                   c. angiotensin II
d. antidiuretic hormone                    e. adrenal medulla hormones

48. When the heart is inefficient to sustain adequate circulation is called:
a. cardiogenic shock               b. vascular shock               c. hypovolemic shock         d. septic shock

49. Which component of the lymphatic structures is responsible for the formation of all formed elements?
a. spleen            b. lymph nodes                 c. thymus                d. red bone marrow            e. tonsils

50. Which component of the lymphatic structures is where immune response is initiated against a substance in the lymph?
a. spleen            b. lymph nodes                 c. thymus                d. red bone marrow            e. tonsils

Answer 1

1. Myocardium

2. Left ventricle

3. d. Blood from Lungs moves to the left side of the heart from where the aorta carries the blood to tissues to deliver oxygen andthen the deoxygenated the blood in the veins which collect in inferior/superior vena cava which deliver the blood to thr right side of the heart which the again carries to the lungs.

4. circumflex artery

5. mitral

6. 21543

7. systole

8. decreased heart rate

9. preload

10. atherosclerosis; its a life style related condition

11. movement of the excitation across the heart

12. left atrium

13. arterioles

14. kidneys

15. venules

16, chemical

17. posterior tibialis

18. femoral

19. Race

20. septic shock

21. AV bundle

22. both atria followed by both ventricles

23. celiac, it supplies blood to the digestive system and associated accessory organs

24. SA node

25. parasympathetic stimulation

26.valves