Across
- 5. The command center
- 7. Nervous System The brain and spinal cord.
- 8. Cells that make up the nervous system
- 10. Tiny blood vessels that connect the arteries to the veins. They deliver oxygen and nutrients to the cells.
- 13. Transfusion Transferring blood form one person to another.
- 15. Cord A tube of neurons that runs up the spine.
Down
- 1. The muscle that acts as the pump for the circulatory system.
- 2. blood cells Cells that help destroy disease causing germs.
- 3. Disk-shaped structures that help your blood to clot.
- 4. Tubes that carry blood away from the heart.
- 6. System Allows the body to move blood to and from tissues
- 9. System The control and communication system of the body.
- 11. Nervous System The nerves that branch out from the CNS
- 12. blood cells Cells that carry oxygen and some wastes to the body.
- 14. Tubes that carry blood to the heart.