Blood System & Circulation — 10 Questions 1. What are the main components of blood?
2. What is the primary function of red blood cells (erythrocytes)?
3. What is the role of white blood cells (leukocytes)?
4. What is hematopoiesis and where does it occur?
5. What are the three main types of blood vessels?
6. How do arteries differ from veins?
7. What is the function of capillaries?
8. Describe the path of blood through the heart starting at the right atrium.
9. What is systemic circulation?
10. What is the difference between systolic and diastolic blood pressure?