Across
- 3. cell fragments that clot blood
- 8. cells that carry oxygen to your body's cells
- 10. returns blood to the heart
- 11. the passageway into your throat that leads to your lungs and stomach
- 13. a series of reactions that breaks down glucose releasing chemical energy for your body
- 14. the mechanical process of taking in air
Down
- 1. cells from your immune system that fight diseases
- 2. tiny air sacs
- 4. takes blood away from the heart
- 5. the liquid that actually transports oxygen, nutrients, waste, and other substances
- 6. the liquid in your blood that carries most of the substances that need to be transported
- 7. a muscle under your rib cage that controls the expansion and contraction of your chest as you breathe
- 9. a flap that prevents food from going into your airway
- 12. a part of the passageway that includes your vocal cords
- 14. tubes leading into your lungs