Across
- 3. the brain and the spinal cord
- 5. contain elastic tissue that allows them to inflate and deflate without losing shape
- 9. what system accounts for 20% of our body weight
- 10. a short loop from the heart to the lungs and back again
- 12. the hardest working muscle
- 16. brings oxygen to the body and sends carbon dioxide out
- 17. contains over 600 muscles
- 18. oxygen, nutrients, and hormones to cells, removes waste product.
- 19. the nervous that go through the whole body
- 21. the formation of blood cells
Down
- 1. viens carry blood to the ____
- 2. The central nervous system and the peripheral nervous system are both part of the___
- 4. pull on joints
- 6. sense that help us perceive and understand the world
- 7. bones provide a rigid frame work known as the ___
- 8. this short tube contains a pair of vocal cord which vibrate to create sound
- 11. bones and muscles work together to create ___
- 13. the smallest muscle is located where?
- 14. carries blood from the heart to all the parts of the body and back again
- 15. carry blood away from the heart
- 20. carries both food and air