Circulatory System PDF

Circulatory System 1. Question: What is the main organ of the circulatory system? Answer: The heart. 2. Question: Name the three types of blood vessels. Answer: Arteries, veins, and capillaries. 3. Question: What is the function of red blood cells? Answer: To carry oxyg...

Circulatory System 1. Question: What is the main organ of the circulatory system? Answer: The heart. 2. Question: Name the three types of blood vessels. Answer: Arteries, veins, and capillaries. 3. Question: What is the function of red blood cells? Answer: To carry oxygen from the lungs to the body and carbon dioxide back to the lungs. 4. Question: What is the largest artery in the human body? Answer: Aorta. 5. Question: What type of blood do veins typically carry? Answer: Deoxygenated blood (except for the pulmonary veins, which carry oxygenated blood). 6. Question: What is the liquid component of blood called? Answer: Plasma. 7. Question: What structure prevents the backflow of blood in the heart? Answer: Valves. 8. Question: What is the normal blood pressure range for an adult? Answer: Approximately 120/80 mmHg. 9. Question: What is the function of platelets? Answer: To help in blood clotting and wound repair. 10. Question: What is the name of the circuit that carries blood between the heart and lungs? Answer: Pulmonary circulation.