Across
- 5. carry deoxygenated blood
- 6. type of ribs that connect to the false ribs
- 9. the organ system in charge of keeping moisture and temperature in and viruses out.
- 11. the smallest structural and functional unit of an organism
- 12. a material making up the body
- 13. another name for skin
- 15. carry oxygenated blood
Down
- 1. the top layer of skin
- 2. an organ that helps you breath
- 3. keeps you alive
- 4. a group of objects such as the cardiovascular system.
- 7. where gases are exchanged.
- 8. type of ribs connecting to the seventh rib.
- 10. type of ribs that connect to the spine and sternum
- 14. the middle layer of skin