Vocab

3. Muscles that are attached to your bones and help you move.
5. The sense of taste.
7. A microscopic agent that causes disease in a host.
8. The study of the human body.
10. The tissues that connect one bone to another bone.
12. The largest part of your brain that helps you think, learn, and remember.
14. The thin outer layer of your skin.
17. A thick bundle of nerves that runs down your back and connects your brain to the rest of your body.
18. The strong and protective building protein that makes up your hair and nails.
19. A type of muscle that moves automatically.

1. The big strong muscle under your lungs that helps you breathe.
2. The basic building blocks of life.
4. Chemical messengers that regulate various body functions.
6. The part of your brain that helps you balance and move smoothly.
9. The organelles inside a cell that give the cell power.
11. A strong flexible rope of rough tissue that connects muscles to bones.
13. A quick, automatic reaction your body makes without thinking.
15. The network of bones inside of you.
16. The sense of smell.
20. Nerves that carry messages from your brain to your muscles to help you move.