science
Across
- 3. little flap that closes when you swallow
- 6. this organ is found in multiple systems
- 7. attached to bones
- 9. this organ helps dissolve food
- 10. this system generates heat
- 12. takes in oxygen to be delivered to the cells
- 13. this system sends messages to the brain
- 15. this system takes in oxygen
- 16. this organ's function is to absorb minerals and water
- 18. this system is made up of veins, arteries and capillaries
- 20. pipe that leads to the lungs
Down
- 1. organ that pumps blood to areas in your body
- 2. carry blood throughout the body
- 4. this system absorbs nutrients and gets rid of waste
- 5. these organs help make your body move around
- 8. nutrients from food are absorbed into the bloodstream in this organ
- 11. this system makes blood cells
- 14. lines the wall of hollow organs
- 17. creates a passage way for neurons to get to the brain
- 19. tiny balloon like air sacs