Across
- 3. Blood that contains oxygen and glucose is known as ____ blood
- 4. Coronary heart disease may lead to _____
- 6. They carry blood away from the heart
- 7. A healthy diet involves replacing animal fats with _____ plant fats
- 8. Blood that contains carbon dioxide and metabolic waste products is knonw as _____ blood
- 9. Microscopic blood vessels that allow for exchange of materials between blood and tissue
- 10. They carry blood towards the heart
Down
- 1. The buildup of fatty substances on inner surfaces of coronary arteries is known as _____
- 2. The transport system in humans is also known as the ______ system made up of heart and blood vessels
- 4. Muscular pump
- 5. Mammals have _____ circulation where blood passes through the heart twice
- 8. These are present in veins to prevent the backflow of blood