Science Body Systems

3. What part of the brain controls the balance, posture, and helps fine-tune movements?
6. Chemicals that kill specific pathogens and are produced by white blood cells.
8. Part of the neuron that carries messages away from the cell body to other nerve cells or neurons.
11. The branches of the neurons that carry messages from other neurons back to the cell body.
13. These are tiny sacs in the lungs where oxygen and carbon dioxide gas exchange takes place.
14. This attaches muscle to bone.
15. This system removes carbon dioxide from the body.
16. What are similar cells that work together to perform a particular function in the body called?
17. This type of tissues include the cardiac, smooth, and skeletal tissues.
20. This system breaks down materials into simper substances the body can use.
21. This part of the brain maintains blood pressure, heartbeat, respiration, and digestion.
22. This is formed when two or more tissues work together to get a particular job done.
23. What system provides oxygen to the body and removes gas wastes?

1. Calcium, blood vessels, and red marrow are part of this.
2. This system provides protection for the organs and support for the body.
4. This system releases hormones and maintains balance in the body.
5. This system carries blood and nutrients to cells throughout the body.
7. The skin prevents these from entering the body.
9. This system keeps hormones in balance in the body.
10. This system collects and processes information passed through the neurons.
12. These type muscles are smooth muscles of the digestive system and cardiac muscles that work automatically.
18. The knee joint is this type of joint.
19. The elbow joint is this type of joint.
22. This bone disease cause bones to become weak and break easily.