Across
- 4. Blood rich in oxygen, typically shown as red in diagrams, that flows from the lungs to the heart and then to the body.
- 5. The muscular organ that pumps blood throughout the body.
- 8. The two lower chambers of the heart that pump blood out of the heart.
- 9. The vein that carries oxygenated blood from the lungs to the left atrium.
- 13. Flaps of tissue that prevent backflow of blood in the heart; includes tricuspid, mitral, pulmonary, and aortic valves.
- 14. Blood vessels that carry oxygenated blood away from the heart to the body, except for the pulmonary artery.
- 15. The largest artery in the body that carries oxygenated blood from the left ventricle to the body.
- 16. The artery that carries deoxygenated blood from the right ventricle to the lungs.
- 17. Blood vessels that carry deoxygenated blood back to the heart, except for the pulmonary vein.
Down
- 1. Tiny blood vessels where the exchange of oxygen, carbon dioxide, and nutrients occurs between blood and tissues.
- 2. The force of blood against the walls of the arteries as it is pumped by the heart.
- 3. Blood low in oxygen, typically shown as blue in diagrams, that flows from the body to the heart and then to the lungs.
- 6. The system that moves blood throughout the body, including the heart, blood vessels, and blood.
- 7. The large vein that carries deoxygenated blood from the body to the right atrium. It includes the superior vena cava (from the upper body) and inferior vena cava (from the lower body).
- 10. A gas that is vital for cell respiration and is carried by the blood from the lungs to the body's tissues.
- 11. A waste gas produced by cells that is carried by the blood to the lungs for exhalation.
- 12. The two upper chambers of the heart that receive blood.