Biology Practice: Circulatory System (Mock Test 2 - Intermediate)
1. Which chamber of the heart receives oxygenated blood from the lungs via the pulmonary veins?
2. The structural and functional difference between an artery and a vein is that arteries:
3. What is the main function of the 'Bicuspid Valve' (Mitral Valve)?
4. Serum differs from blood plasma because serum lacks:
5. The "Pacemaker" of the heart, which initiates the heartbeat, is the:
6. Hepatic Portal Vein carries blood from the ________ to the ________.
7. Which of the following is a symptom of 'Hypertension'?
8. The process of formation of RBCs in the bone marrow is known as:
9. Lymphatic system is important because it drains excess fluid and returns it to the:
10. The closing of the 'Semilunar Valves' produces which heart sound?
11. 'Angina Pectoris' is chest pain caused by the reduced blood supply to the:
12. Which WBCs are responsible for producing 'Antibodies'?
13. The standard human blood pressure for a healthy adult is:
14. Which blood vessel has the smallest diameter and allows for the exchange of gases by diffusion?
15. The 'Rh factor' in blood is named after which animal?
16. 'Systole' refers to the ________ of the heart chambers.
17. Which of the following is NOT a part of the 'Double Circulation' in humans?
18. The accumulation of cholesterol on the inner walls of arteries is called:
19. Why is the 'Left Ventricle' wall thicker than the 'Right Ventricle' wall?
20. 'Palpitation' refers to:
