Across
- 4. blood cells that help fight disease
- 7. vessels connect arteries and veins together so they can switch materials
- 9. Blood cells that carry oxygen from the lungs to the body cells. red blood cells
- 11. carries oxygen-poor blood from the heart to the lungs
- 12. are Blood vessels that carry deoxygenated blood (carbon dioxide) back toward the heart to get oxygen pumped
- 13. pumps blood
Down
- 1. needed for blood clotting
- 2. gas that enters the blood through the heart and lungs and into the body to be used in metabolism in cells
- 3. waste product of metabolism in cells and is replaced with oxygen in the heart and lungs
- 5. Transports oxygen, waste, nutrients, hormones, heat, etc... around the body; fights disease; and maintaining homeostasis circulatory system
- 6. Flaps of tissue that open and close to allow the flow of blood in one direction to prevent backward flow of blood; only present in veins
- 8. Liquid part of blood that carries nutrients and waste
- 10. blood vessels that carry oxygenated blood away from the heart and into different parts of the body