Across
- 1. a tissue that prevents choking
- 4. allows rotating movement
- 5. an artery that carries oxygenated blood
- 7. found in the heart, and forces blood
- 10. allows movement in one direction
- 11. a thick liquid that processes food
- 12. controls hormones
- 14. a muscular tube
- 16. contains information on the person
- 17. an elastic tissue that covers the lungs
- 18. an area that contains the vocal cords
- 20. a network of blood vessels
- 21. sends messages to the sensory organs
Down
- 2. helps bone repair
- 3. largest and most complex part of the brain
- 6. carries blood away from the heart
- 8. a box that holds lungs, and other respiratory parts
- 9. carry blood back to the heart
- 13. a large muscle that forms along the ribs and muscles
- 15. the airway (nasal cavity and mouth)
- 19. a saliva that breaks down food