Body fluids and circulation MCQs with Answers

Question-1. Blood pressure is measured by

1. sphygmomanometer
2. electrocardiogram
3. stethoscope
4. None of these

Question-2. Bundle of His is a network of

1. nerve fibres distributed in ventricles
2. nerve fibres found throughout the heart
3. muscle fibres distributed throughout the heart walls
4. muscle fibres found only in the ventricle wall

Question-3. Carbonic anhydrase occurs in

1. lymphocytes
2. blood plasma
3. RBC
4. leucocytes

Question-4. Cells formed in bone marrow include

1. RBC
2. RBC and leucocytes
3. leucocytes
4. lymphocytes

Question-5. Chordae tendinae are found in

1. ventricles of heart
2. atria of heart
3. joints of legs
4. ventricles of brain

Question-6. Coronary artery disease (CAD) is often referred to as

1. Atherosclerosis
2. Heart failure
3. Cardiac arrest
4. None of these

Question-7. Damage to thymus in a child may lead to

1. a reduction in haemoglobin content of blood
2. a reduction in stem cell production
3. loss of antibody mediated immunity
4. loss of cell mediated immunity

Question-8. Examination of blood of a person suspected of having anaemia, shows large, immature, nucleated erythrocytes without haemoglobin.Supplementing his diet with which of the following, is likely to alleviate his symptoms ?

1. Thiamine
2. Folic acid and cobalamin
3. Riboflavin
4. Iron compounds

Question-9. Fastest distribution of some injectible material/ medicine and with no risk of any kind can be achieved by injecting it into the

1. Arteries
2. Veins
3. Lymph vessesls
4. Muscles

Question-10. Glucose is carried from digestive tract to liver by

1. pulmonary vein
2. hepatic portal vein
3. hepatic artery
4. None of the above

Question-11. Haemoglobin is having maximum affinity with

1. CO
2. O2
3. NH3
4. None of these

Question-12. Heart is covered by

1. Pericardium
2. Pleural membrane
3. Visceral membrane
4. None of these

Question-13. Hepatic portal system carries

1. Deoxygenated blood from intestine to live
2. Oxygenated blood from liver to intestine
3. Oxygenated blood from intestine to liver
4. Deoxygenated blood from liver to intestine

Question-14. If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

1. The flow of the blood into the aorta will be slowed down
2. The ?pacemaker? will stop working
3. The blood will tend to flow back into the left atrium
4. The flow of blood into the pulmonary artery will be reduced

Question-15. If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?

1. Serum albumins
2. Serum globulins
3. Fibrinogen in the plasma
4. Haemocytes

Question-16. In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?

1. T-end of diastole
2. P-depolarisation of the atria
3. R-repolarisation of ventricles
4. S-start of systole

Question-17. In humans, blood passes from the post caval to the diastolic right atrium of heart due to

1. pushing open of the venous valves
2. suction pull
3. stimulation of the sino auricular node
4. pressure difference between the post caval and atrium

Question-18. Life span of human RBCs is

1. 120 days
2. 9 days
3. 20 days
4. 90 days

Question-19. Pacemaker of heart is

1. SA node
2. AV node
3. Bundle of His
4. Purkinje fibres

Question-20. Pulmonary artery is different from pulmonary vein because it has

1. larger lumen
2. thick muscular walls
3. no endothelum
4. valves

Question-21. Short-lived immunity acquired from mother to foetus across placenta or through mother?s milk to the infant is categorised as

1. cellular immunity
2. innate non-specific immunity
3. active immunity
4. passive immunity

Question-22. Splenic artery arises from

1. anterior mesenteric artery
2. coeliac artery
3. posterior mesenteric artery
4. intestinal artery

Question-23. Systemic heart refers to

1. enteric heart in lower vertebrates
2. the two ventricles together in humans
3. the heart that contracts under stimulation from nervous system
4. left auricle and left ventricle in higher vertebrates

Question-24. The affinity of CO with Hb is more than oxygen by

1. 2000 times
2. 20 times
3. Both
4. None of these

Question-25. The antibodies are

1. germs
2. carbohydrates
3. proteins
4. lipids

Question-26. The blood cancer is known as

1. leukemia
2. thrombosis
3. haemolysis
4. haemophilia

Question-27. The lymph serves to

1. transport oxygen to the brain
2. transport carbon dioxide to the lungs
3. return the interstitial fluid to the blood
4. return the WBCs and RBCs to the lymph nodes

Question-28. The pattern of contraction and relaxation of the heart is referred to as

1. cardiac cycle
2. arterial flow
3. blood pressure
4. blood flow

Question-29. The thickening of walls of arteries is called

1. arthritis
2. atherosclerosis
3. aneurysm
4. Both a) and c)

Question-30. Thickening of arteries due to cholesterol deposition is

1. arteriosclerosis
2. blood pressure
3. rheumatic heart
4. cardiac arrest

Question-31. Tricuspid valve is found in between

1. sinus venosus and right auricle
2. right auricle and right ventricle
3. left ventricle and left auricle
4. ventricle and aorta

Question-32. Uricotelism is found in

1. Fishes and fresh water protozoans
2. Birds, reptiles and insects
3. Mammals and birds
4. Frogs and toads

Question-33. Wall of blood capillary is formed of

1. haemocytes
2. parietal cells
3. endothelial cells
4. oxyntic cells

Question-34. What is true about T-lymphocytes in mammals ?

1. They scavenge damaged cells and cellular debris
2. These are produced in thyroid
3. There are of three main types?cytotoxic T-cells, helper T-cells and suppressor Tcells
4. These originate in lymphoid tissues

Question-35. Which of the following factors is known as Christmas factor?

1. Factor IX
2. Factor XII
3. Factor VIII
4. Factor IV

Question-36. Which of the following is not main function of lymph glands ?

1. Forming WBC
2. Forming antibodies
3. Forming RBC
4. Destroying bacteria

Question-37. Which of the following set of animals has an incomplete double circulation system?

1. Toad and lizard
2. Shark and whale
3. Frog and crocodile
4. Lizard and pigeon

Question-38. Which of the following statements is true for lymph?

1. WBC and serum
2. All components of blood except RBCs and some proteins
3. RBCs, WBCs and plasma
4. RBCs, proteins and platelets

Question-39. Which of the following substances, if introduce in the blood stream, would cause coagulation, at the site of its introduction ?

1. Fibrinogen
2. Prothrombin
3. Heparin
4. Thromboplastin

Question-40. Which one of the following is a correct matching pair?

1. Lubb - Sharp closure of AV valves at the beginning of ventricular systole
2. Dup - Sudden opening of semilunar valves at the beginning of ventricular diastole.
3. Pulsation of the radial artery valves in the blood vessels
4. Purkinje fibers - Initiation of the heart beat

Question-41. Which one of the following statements about blood constituents and transport of respiratory gases is most accurate?

1. RBCs transport oxygen whereas WBCs transport CO2
2. RBCs transport oxygen whereas plasma transports only CO2
3. RBCs as well as WBCs transport both oxygen and CO2
4. RBCs as well as plasma transport both oxygen and CO2

Question-42. Which one of the following vertebrate organs receives the oxygenated blood only?

1. Gill
2. Lung
3. Liver
4. Spleen

Question-43. With reference to the blood in a normal person, which one of the following statements is correct?

1. The blood has more platelets than WBC.
2. White blood cells (WBC) are made by lymph nodes only
3. Blood cells constitute about 70 percent of the total volume of the blood
4. Compared to arteries, veins are less numerous and hold less of the body?s blood at any given time.

Question-44. A vein possesses a large lumen because

1. tunica media and tunica externa form a single coat
2. tunica interna and tunica media form a single coat
3. tunica interna, tunica media and tunica externa are thin
4. tunica media is a thin coat

Question-45. AIDS is caused by HIV that principally infects

1. all lymphocytes
2. activator B-cells
3. T4 lymphocytes
4. cytotoxic T-cells

Question-46. Among the following stem cells, which are found in the umbilical cord?

1. Cord blood stem cells
2. Adult stem cells
3. Embryonic stem cells
4. All of the above

Question-47. An adult human has systolic and diastolic pressures as:

1. 80 mm Hg and 120 mm Hg
2. 120 mm Hg and 80 mm Hg
3. 50 mm Hg and 80 mm Hg
4. 80 mm Hg and 80 mm Hg

Question-48. An adult human with average health has systolic and diastolic pressures as

1. 120 mm Hg and 80 mm Hg
2. 50 mm Hg and 80 mm Hg
3. 70 mm Hg and 120 mm Hg
4. 80mm Hg and 80 mm Hg

Question-49. Antibodies in our body are complex

1. lipoproteins
2. steroids
3. prostaglandins
4. glycoproteins

Question-50. Arteries are best defined as the vessels which

1. Carry blood from one visceral organ to another visceral organ
2. Supply oxygenated blood to the different organs
3. Carry blood away from the heart to different organs
4. Break up into capillaries which reunite to form a vein

Question-51. Arteries carry oxygenated blood except

1. pulmonary
2. cardiac
3. hepatic
4. systemic

Question-52. Artificial pace maker is transplanted in

1. Inter auricular septum
2. Below the collar bone
3. Inter ventricular septum
4. Right auricle

Question-53. Blood group AB has

1. no antibody
2. no antigen
3. neither antigen nor antibody
4. both antigen and antibody

Question-54. Cardiac arrest is the state when

1. heart stops beating
2. inadequate blood supply to the heart
3. heart not pumping enough to meet the body needs
4. blood pressure increases

Question-55. Christmas disease is also known as

1. Haemophilia B
2. AIDS
3. Haemophilia A
4. Haemolytic jaundice

Question-56. Dup sound is produced during closure of

1. semilunar valves
2. bicuspid valve
3. tricuspid valve
4. Both b) and c)

Question-57. Duration of cardiac cycle is

1. 0.7 sec
2. 0.9 sec
3. 0.8 sec
4. 0.11 sec

Question-58. Heart failure occurs due to

1. heart stops beating
2. damage of heart muscles
3. congestion of lungs
4. all of the above

Question-59. Heparin is

1. Anti-allergic
2. Blood diluter
3. Anticoagulant
4. Antiseptic

Question-60. If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

1. The flow of blood into the pulmonary artery will be reduced
2. The flow of blood into the aorta will be slowed down
3. The pacemaker will stop working
4. The blood will tend to flow back into the left atrium

Question-61. If vagus nerve is cut the heart beat

1. increases
2. decreases
3. will not be affected
4. will stop immediately

Question-62. In developing embryo RBCs are formed in

1. Lymph node
2. Bone marrow
3. Liver
4. Spleen

Question-63. In humans, blood passes from the post caval to the diastolic right atrium of heart due to:

1. Pressure difference between the post caval and atrium
2. Pushing open of the venous valves
3. Suction pull
4. Stimulation of the sino auricular node

Question-64. In veins, values are present to check backward flow to blood flowing at

1. low pressure
2. high pressure
3. atmospheric pressure
4. None of these

Question-65. Oxygenated blood occurs in

1. Pulmonary artery
2. Right atrium
3. Right ventricle
4. Pulmonary vein

Question-66. The cells lining the blood vessels belong to the category of

1. Columnar epithelium
2. Connective tissue
3. Smooth muscle tissue
4. Squamous epithelium

Question-67. What is the normal blood pressure of human beings?

1. 110/70
2. 120/70
3. 120/80
4. 110/80

Question-68. When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release

1. Fibrinogen
2. Thrombin
3. Prothrombin
4. Thromboplastin

Question-69. Which of the following statement/statements can be related to erythroblastosis foetalis?

1. Severe anemia and jaundice to the baby.
2. Can be avoided by giving anti-Rh antibodies to mother immediately after delivery of the first child.
3. Rh-antibodies from the Rh -ve mother destroys foetal RBCs.
4. All of the above