Across
- 3. Liquid portion of blood that carries cells and nutrients
- 5. Specialized muscle only found in the heart
- 8. Body’s largest artery
- 10. Oxygen-carrying protein in red blood cells
- 12. Next to Australia
- 13. Circulates oxygen and nutrients through the body
- 14. Lower heart chamber that pumps blood out
- 15. Upper heart chamber receiving blood
- 16. Muscle that never stops beating
Down
- 1. Voluntary muscle type attached to bones
- 2. A long journey
- 4. Force that blood exerts on vessel walls
- 6. Related to the heart and blood vessels
- 7. What we inhale to survive
- 9. South American rainforest
- 11. Involuntary muscle found in organs like the intestines