Biology Practice: The Circulatory System (Mock Test 2 - Intermediate)
1. Why do arteries have thick, elastic walls compared to veins?
2. During the clotting process, which protein is converted into "Fibrin" to form a mesh?
3. What is the specific role of "Pericardial Fluid" in the heart?
4. Which of these is a correct comparison between RBCs and WBCs?
5. The "Inferior Vena Cava" is a large vein that collects deoxygenated blood from:
6. What would happen if the Bicuspid valve failed to close properly?
7. Which blood group has "neither A nor B antigens" on the surface of RBCs?
8. In the "120/80" blood pressure reading, what does the "80" represent?
9. The wall of the ________ is much thicker because it has to pump blood to the whole body.
10. What is the primary function of "Tissue Fluid" (Intercellular fluid)?
11. If a person is Rh negative, it means they:
12. Why are veins described as having "valves"?
13. Which statement about the Pulmonary Vein is correct?
14. What happens to the pulse rate immediately after intense exercise?
15. "Angina Pectoris" is characterized by acute chest pain because:
16. The rate at which platelets are produced in the human body is:
17. Which of these is a function of the Lymphatic system?
18. What is the main difference between a Heart Attack and a Cardiac Arrest?
19. Why is Blood Group O called the Universal Donor?
20. The special muscles that make up the walls of the heart are called:
