The Circulatory System
Across
- 4. _____ blood cells are the second line of defense, in the immune system, and travel in the blood steam, destroying bacteria and viruses by engulfing them.
- 6. Blood vessels that carry oxygenated blood away from the heart and to tissues in the body. A for Away.
- 8. and important concept in the circulatory system. The idea of a high concentration of a substance moving to to a lower concentration of the same substance.
- 10. The main organs of the respiratory system.
- 11. Very thin blood vessels that connect arteries and veins, and also serve as oxygen exchange areas.
- 12. pressure A healthy __________________ is around 120 / 60.
- 13. The main organ in the cardiovascular system that pumps blood though out the body.
- 14. Blood consists of 55% of_____.
- 16. The ___________ system and the cardiovascular system are both included in the circulatory system.
- 18. Dioxide Waste product released out of the blood stream and out the lungs.
- 19. Atrium Attached to the superior and inferior vena cava, and receives oxygen-lacking blood. (One of the four cavities of the heart)
Down
- 1. Blood vessels that carry deoxygenated blood towards the heart.
- 2. The name of the two lower chambers of the heart.
- 3. The _____ lung is slightly smaller to make room for the heart.
- 5. The ___________ system connects all of the other body system together, by supplying their tissues with nutrients and oxygen.
- 7. The main artery connected to the heart that carries oxygenated blood to the body.
- 9. The _____ cavities are the main entry way for air to enter the body: either through the oral cavity (mouth) and the nose.
- 15. another name for the vocal chords
- 16. blood cells Cells in the blood that are in charge of carrying oxygen on other nutrients through the blood stream.
- 17. Circulation The process of the movement of blood traveling from the heart to the lungs, to rid of CO2 and receive oxygen, and back to the heart.