Circulatory System Questions and Answers test 1

Mdcat Biology XI Circulatory system Test 1
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Test Details:

  • Subject: Biology
  • Class: 1st year or 11
  • Chapter name: Circulatory System
  • Test: MDCAT 2023
  • Book: Sindh Textbook
  • Total No. Of MCQS: 50
  • Time Allowed: 50 Minutes
  • Price : Free
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Mdcat Biology XI Circulatory / Transport Mcqs test 1



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1 / 50

1. Left atrium receives oxygenated blood from

2 / 50

2. Mitral valve is present between __________

3 / 50

3. The opening of right atrium into right ventricle is guarded by _______

4 / 50

4. SA node is located in _____

5 / 50

5. Which of the following has the thickest wall?

6 / 50

6. Papillary muscles contract:

7 / 50

7. What is/are common component(s) of both capillaries and arteries?

I) Elastic fibres II) Smooth Muscles III) Endothelium

8 / 50

8. The type of blood vessels that provide direct approach to cell in the body are:

9 / 50

9. Pericardium covers heart as it is.

10 / 50

10. When heart is beating, friction between heart wall and surrounding tissues is reduced by:

11 / 50

11. Right ventricle of human heart opens into:

12 / 50

12. The blood vessels that generally carry oxygenated blood are:

13 / 50

13. Which type of blood vessel(s) contain(s) valves?

14 / 50

14. When the two upper chambers of human heart contract:

15 / 50

15. Tunica intima of veins is composed of

16 / 50

16. In human heart, the heartbeat is begun in:

17 / 50

17. Coronary sinus receives:

18 / 50

18. In human heart, atrioventricular valve between left atrium and left ventricle:

19 / 50

19. Find the right statement about thickness of walls of heart chambers.

20 / 50

20. Generally called as pace maker of heart:

21 / 50

21. Valves prevent backflow of blood; valves are typically present in:

22 / 50

22. Find the right choice for the right series of path of blood through heart.

23 / 50

23. Oxygen-poor blood that has returned from the body:

24 / 50

24. All of the following events happen in right ventricle during its contraction except:

I) The tricuspid valve closes.

II) Oxygen-poor blood transported into the lungs to be oxygenated.

III) The blood is pumped through the pulmonary valve into the pulmonary arteries.

IV) Oxygen-rich blood transported into the lungs to be oxygenated.

25 / 50

25. The pulmonary valve regulates the:

26 / 50

26. The heart muscles rest:

27 / 50

27. What is untrue about ventricular contraction?

28 / 50

28. Identify the phase of cardiac cycle with following characteristic features.

I) Semilunar valves: open II) High pressure in ventricles III) AV valves: close

29 / 50

29. Arteries are a type of blood vessels; and they branch into:

30 / 50

30. Right atrium is a chamber of heart and it receives:

31 / 50

31. Human heart is „double pump‟ because:

32 / 50

32. Blood enters the right atrium from the body through the venae cavae in:

33 / 50

33. Human heart has 4 chambers; the lower two chambers are called ?

34 / 50

34. The specialized group of cardiac cells responsible for starting action potential throughout the heart:

35 / 50

35. The two ventricles of human heart are separated by:

36 / 50

36. The smooth outer surface of the heart chambers is nature of:

37 / 50

37. Bicuspid valve and tricuspid valve remain open during which phase of cardiac cycle?

38 / 50

38. The heart chamber that produces the highest pressure in the blood is:

39 / 50

39. What is/are untrue statement(s) about ventricular diastole?

I) Mitral and tricuspid valves open.

II) Oxygen rich blood from the left atrium flows to the left ventricle

III) Mitral and tricuspid valves close.

40 / 50

40. Find the right statement about tricuspid valve.

I. It prevents backflow of blood from right ventricle to right atrium.

II.  It prevents backflow of blood from right atrium to right ventricle.

III. It prevents backflow of blood from left atrium to left ventricle.

41 / 50

41. The right ventricle of human heart sends blood into pulmonary trunk:

42 / 50

42. Capillary wall consists of:

43 / 50

43. Blood passes into which chamber of heart, after crossing the mitral valve?

44 / 50

44. What is duration of normal cardiac cycle?

45 / 50

45. Coronary sinus receives:

46 / 50

46. Find the correct order about systemic circulation?

47 / 50

47. Left atrium of human heart receives:

48 / 50

48. Situation: The chordae tendinae attached to mitral valve are damaged. What would be the Result/Effect?

49 / 50

49. The heart valves are formed by:

50 / 50

50. What is true about pericardium?

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