Cardiovascular System and Respiratory System
Across
- 2. Contracts downwards to allow space for chest to expand.
- 6. Made from fatty foods that we eat. There are two types of it.
- 7. An effect of regular exercise on the CV system is Cardiac ...?
- 10. The amount of blood ejected from the heart per beat.
- 11. Smallest type of blood vessel, found in hands and toes.
- 13. Allows us to chew and breathe at the same time.
- 14. Protects the organs such as the lungs.
Down
- 1. Flap at the back of our throat.
- 3. The main artery.
- 4. Thin walled, spongy sacs that fill when we breathe.
- 5. Take blood TO the heart.
- 6. We exhale to get rid of this.
- 7. Oxygen attaches to this in a red blood cell.
- 8. Scientific name for the windpipe.
- 9. Deoxygenated blood returns to the heart through this.
- 12. Take blood AWAY from the heart.