Across
- 2. Blood vessels that carry blood away from the heart.(8)
- 3. Airways that connect the trachea and the lungs(7)
- 5. Largest and most complex part of the brain(8)
- 9. Bean shaped organs about the size of a fist(7)
- 10. Windpipe(7)
- 14. Muscle that opens a joint(9)
- 15. Muscle that closes a joint(7)
- 17. Doctors who study the ____ are called cardiologists.(5)
Down
- 1. Muscle that separates the chest from the abdominal cavity(9)
- 4. Blood vessels that return blood to the heart(5)
- 6. Outer layer of the skin(9)
- 7. Where digestion begins(5)
- 8. This uses nearly 20% of body's energy.(5)
- 11. These make up about 40% of total body weight.(7)
- 12. The exchange of gases between the body and the environment.(11)
- 13. Transparent tissue that bends and focuses light before it enters the lens.(6)
- 16. When you blush, the lining of your_____ also turns red.(7)
