1. What is the main function of the cardiopulmonary system? a) To help us breathe b) To pump blood throughout the body c) To digest food d) To control our body temperature

2. Which organ is responsible for pumping blood in the cardiopulmonary system? a) Lungs b) Heart c) Liver d) Kidneys

3. What is the purpose of blood vessels in the cardiopulmonary system? a) To transport oxygen and nutrients to the body’s cells b) To produce red blood cells c) To filter waste products from the blood d) To store excess blood for emergencies

4. How does the respiratory system work together with the cardiovascular system? a) The respiratory system pumps blood throughout the body b) The cardiovascular system helps us breathe in oxygen c) The respiratory system provides oxygen to the blood, which is then pumped by the heart d) The cardiovascular system filters the air we breathe

5. What happens to the oxygen-rich blood in the cardiopulmonary system? a) It is pumped to the lungs to pick up carbon dioxide b) It is sent to the brain for energy production c) It is stored in the liver for future use d) It is converted into glucose for digestion

Answers: 1. b) To pump blood throughout the body 2. b) Heart 3. a) To transport oxygen and nutrients to the body’s cells 4. c) The respiratory system provides oxygen to the blood, which is then pumped by the heart 5. a) It is pumped to the lungs to pick up carbon dioxide