The Circulatory System Vocabulary 1. ______________The group of body parts that carries the blood throughout the body to keep the body working well. 2. The four main jobs of the circulatory system are: a. b. c. d. __________________________ __________________________ __________________________ __________________________ 3. The circulatory system is made up of the ________, your ______________, and your _________. 4. The _________ is the main organ in the circulatory system and pumps blood throughout your body. 5. _______________Tubes that carry blood throughout your body. 6. _______________Carry blood away from the heart. 7. _______________Blood vessels that carry blood to the heart. 8. _______________Tiny tubes that carry blood from the arteries to the body’s cells and from those cells to the veins. 9. _______________The force on the inside walls of the blood vessels. 10. _______________A disease of both the bones and the blood; occurs when a person has too many white blood cells. 11. _______________A disease in which the blood clots little or not at all possibly causing a person to bleed to death when injured; only males can have this disease. 12. _______________Hardening of the arteries.