Question

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 structure of the lymphatic system initiates the immune response when an organ is attack by a pathogen or tumor?
a. spleen b. lymph nodes c. thymus d. red bone marrow e. tonsils

Answer 1

26. d. Arteries have thickest Tunica media as they have to exert greater pressure to send blood to different parts of the body as well as to withstand the high pressure of blood sent by heart.

27. c. Thoracic duct

28. b. False. Flow of lymph is always towards the heart.

29. a. Plasma cells are derived from B cells of the immune system which provide humoral immunity.

30. d. Macrophages.

31. b. False. There are more afferent vessels that carry lymph towards lymph node than efferent vessels that carry lymph away from the node. This causes slow passage of lymph and facilitates the cleansing process.

32. c. Deeper cortex of the lymph node contains T cells in transit.

33. c. Pancreas has digestive and endocrine function.

34.b. Thymus

35. a. Spleen

36. c. Cisterna chyli. It receives lymph from the leg and intestinal tract.

37. c. Reticular tissue.

38. d. Arteries.

39. d. At 4 points- Two common carotid artery, facial artery and temporal artery.

40. d. Mediastinum.

41. c. Right AV valve.

42. c. Epicardium.

43. c. Coronary circulation.

44. c. Diastole.

45. b. Heart rate slower than 60 beats per minute.