MDCAT Entry Test Prep: Ultimate 50-Question Human Anatomy Quiz Challenge!

MDCAT Entry Test Mastery: 50-Question Human Anatomy Quiz to Crush Your Prep!

Ultimate Human Anatomy Challenge: Test Your Knowledge!

Welcome to the Ultimate Human Anatomy Quiz! Test your knowledge of the cardiovascular and lymphatic systems with 50 carefully crafted questions.

Instructions: Click on the square option you think is correct (it will turn orange when selected). Once you've answered all questions, hit "Submit Quiz" to see your score and detailed explanations for each question!

1. Human heart is located in:

Pleural cavity Mediastinum Abdominal cavity Diaphragm

2. The largest vein in the body is:

Coronary sinus Vena cava Pulmonary vein Portal vein

3. Lymph is similar to plasma but contains more:

Proteins Fats Urea Hormones

4. The innermost layer of a blood vessel is:

Tunica media Tunica intima Tunica externa Endocardium

5. Which chamber pumps blood to the lungs?

Left ventricle Right atrium Right ventricle Left atrium

6. Thymus gland is responsible for maturation of:

B-cells T-cells RBCs Platelets

7. The largest artery of the body is:

Pulmonary artery Aorta Renal artery Coronary artery

8. Which valves prevent backflow into atria?

Semilunar valves AV valves Aortic valves Pulmonary valves

9. The thickest wall is found in which heart chamber?

Left ventricle Right ventricle Left atrium Right atrium

10. Continuous capillaries are located in:

Kidneys Brain Liver Intestine

11. Pulmonary veins carry:

Oxygenated blood Deoxygenated blood Mixed blood Nutrients

12. Arterioles are called resistance vessels because they:

Store blood Maintain blood pressure Control flow to capillaries Filter blood

13. Which organ filters blood but not lymph?

Lymph node Spleen Tonsils Thymus

14. Graveyard of RBCs refers to:

Bone marrow Liver Spleen Kidneys

15. Which valve is present between left atrium and left ventricle?

Aortic Pulmonary Mitral (Bicuspid) Tricuspid

16. Varicose veins occur due to:

Hypertension Faulty valves Low BP Weak arteries

17. Blue baby syndrome occurs due to:

AV valve defect Septal defect Aortic stenosis Varicose veins

18. Thoracic duct drains lymph from:

Right upper quadrant Left side of body & lower limbs Brain only Heart only

19. Myocardium of the heart is made of:

Skeletal muscle Smooth muscle Cardiac muscle Elastic fibers

20. Intercalated discs are present in:

Smooth muscle Skeletal muscle Cardiac muscle Lymph nodes

21. The cardiac cycle is completed in approximately:

0.5 sec 0.8 sec 1.2 sec 2.0 sec

22. During atrial systole, which valves remain open?

AV valves Semilunar valves Both valves None

23. Ventricular systole begins with closure of:

AV valves Aortic valve Pulmonary valve Semilunar valves

24. Which valves open during ventricular systole?

Aortic & Pulmonary Tricuspid & Mitral AV valves All valves

25. Fenestrated capillaries are found in:

Brain Kidneys Skin Muscles

26. Coronary arteries supply blood to:

Brain Lungs Heart Kidneys

27. Skeletal muscles help venous return by:

Compressing veins Storing blood Stretching arteries Dilating arterioles

28. Peyer’s patches are located in:

Colon Ileum Duodenum Liver

29. The function of valves in veins is to:

Increase BP Prevent backflow Increase velocity Store blood

30. Shock is caused by:

Excessive vasodilation Excessive vasoconstriction High BP Valve closure

31. Which chamber receives blood from pulmonary veins?

Left atrium Right atrium Left ventricle Right ventricle

32. Which vessels have the thickest tunica media?

Veins Arterioles Capillaries Arteries

33. Spleen removal increases risk of:

Anemia Infections Hypertension Heart attack

34. Hypertension is mainly caused by narrowing of:

Veins Venules Arterioles Capillaries

35. Right lymphatic duct drains lymph from:

Left arm Right side of head, chest & arm Abdomen Lower limbs

36. Which structure separates right and left ventricles?

Interatrial septum Interventricular septum AV valves Semilunar valves

37. Which vein carries oxygenated blood?

Pulmonary vein Portal vein Vena cava Jugular vein

38. A patient with defective bicuspid valve will have backflow into:

Right atrium Left atrium Right ventricle Left ventricle

39. If thoracic duct is blocked, which function will be impaired?

Blood oxygenation Fat absorption WBC production RBC removal

40. A person with faulty venous valves in legs may develop:

Varicose veins Atherosclerosis Aneurysm Shock

41. A patient with ruptured artery wall leading to internal bleeding is suffering from:

Hypertension Aneurysm Varicose veins Shock

42. During exercise, which vessel regulates blood flow to muscles?

Veins Arterioles Capillaries Venules

43. A child born with septal defect will show:

High BP Cyanosis Anemia Varicose veins

44. Blockage of coronary arteries will directly cause:

Stroke Heart attack Blue baby syndrome Shock

45. If lymph nodes are removed from axilla, the person may develop:

Hypertension Edema in arm Heart enlargement Anemia

46. SA node is called the natural pacemaker because it:

Contracts ventricles Initiates impulse for heartbeat Opens valves Pumps blood

47. The delay at AV node ensures:

Ventricles contract before atria Atria contract before ventricles Valves remain closed Blood flows backward

48. Which structure conducts impulse from AV node to ventricles?

Purkinje fibers Bundle of His SA node Intercalated discs

49. Sympathetic stimulation of SA node causes:

Decrease in heart rate Increase in heart rate No effect Complete block

50. The “lub” sound of the heart is produced by:

Closure of AV valves Closure of semilunar valves Opening of AV valves Opening of semilunar valves