Across
- 5. tubes that blood flows through
- 7. susbtance transported by red blood cells
- 8. to move from place to place
- 9. liquid part of the blood
- 10. white blood cells ____ the body against pathogens
Down
- 1. the transport system of the human body
- 2. there are ____ parts of the circulatory system
- 3. contains substances to be transported by the body
- 4. cause the blood to clot when there is an injury
- 6. muscular pump to move blood around the body