Across
- 1. smallest blood vessels that connect veins and arteries
- 4. this organ is part of the circulatory system and pumps blood to the body
- 6. another word for sweating or excreting water through your skin
- 10. Which system provides oxygen and removes carbon dioxide
- 11. main organ of the respiratory system
- 12. tiny air sacs at the ends of the bronchioles
- 13. system that transport blood with nutrients and oxygen to different parts of the body
Down
- 2. body system that regulates body temperature and maintains homeostasis (keeps things in balance)
- 3. also called the windpipe
- 5. main organs of the urinary system
- 7. this is the system that is made up primarily of the skin and other things
- 8. vessel that takes blood away from the heart
- 9. muscle that helps the lungs inflate and deflate