Circulatory system

4. protect you when an unwanted substance enters your body.
7. The cavity or channel within a tube or tubular organ such as a blood vessel or the intestine.
9. where red blood cells and white blood cells are created.
11. moves blood between the heart and the rest of the body.
13. it is made of 90% H2O and 10% solutes.
14. produce antibodies.
16. carries blood from the head, neck, arms, and chest.
19. to prevent and stop bleeding.
20. carry a large volume of blood from the heart to the kidneys.
21. comes from the lungs to the heart and from the heart to the body.
23. it is part of the heart and is responsible to pump the oxygenated blood to the body.

1. fight bacteria.
2. takes deoxygenated blood to the lungs.
3. receives blood from the veins and forces it into a ventricle or ventricles.
5. a process during which blood passes twice through the heart during one complete cycle.
6. carries blood to away from the heart to the body.
8. take blood to the heart.
10. movement of substances from high to low concentration.
12. separates the ventricles and allows for proper blood flow through the heart.
14. A thin tube that carries lymphatic fluid and white blood cells through the lymphatic system.
15. is the smallest blood vessel known.
17. is the 4 chambered muscular pump.
18. a group of cells that have similar structure and that function together as a unit.
22. a molecule that contains the biological instructions that make each species unique.