Body Systems

4. The ______ is also called the voice box
6. Muscles move body parts by contracting and then ________
7. The _________ is the largest and most complex part of the brain
10. ________ is found in the heart
14. ____________ are networks of tiny blood vessels
16. The nerves that go through the whole body make up the __________________
17. The lungs and ____________ allow us to breathe
18. The __________________ carries blood from the heart to all the other parts of the body and back again

1. Cancellous bone resembles _____
2. smooth muscle is also referred to as_________
3. Bones are made up of a framework of a protein called ________
5. _________ is the solid, hard outside part of the bone
8. air enters the respiratory system through the ____ or the mouth.
9. The ________________ is a short loop from the heart to the lungs and back again
11. The _____ is a big artery that leaves the heart carrying this oxygenated blood centralnervoussystem the brain and the spinal cord are the _________________
12. ________is attached by cord-like tendons
13. The human brain weighs ______ pounds
15. _______ is where most of the body's blood cells are made