Across
- 4. to take air into the lungs and then to expel it from the lungs
- 6. a colorless, odorless gas necessary for almost all life
- 8. blood cells blood cells that contain structures that fight infections
- 10. upper chamber in the heart from which blood moves to the ventricle
- 13. major blood vessel through which oxygen-rich blood leaves the heart
- 14. the organ system that moves blood throughout the body
- 17. tubelike structure in the body through which blood flows
- 19. means to move it from one place to another
- 20. a body fluid that moves materials throughout the body
- 21. means done without choice
- 22. a gas the body gives off as waste
- 23. means a pushing force exerted in every direction
- 25. beat caused by the heart contracting,or squeezing,and pushing blood throughout the body
- 27. means relating to the heart and blood vessels
- 29. the set of organs that function together to move gases into and out of the body
Down
- 1. main chamber in the heart that pumps blood to the arteries
- 2. means to trade, or give one thing and receive
- 3. the exchange of gases between the body and air
- 5. means to work for a specific purpose
- 7. the clear fluid part of blood
- 9. the degree of wellness of the body
- 11. the detectable surge in pressure as blood moves through an artery
- 12. the combination of foods a person consumes
- 15. blood cells tiny structures in blood that carry oxygen to body tissues, at maturity these are simply the cell membrane
- 16. means done by choice
- 18. refers to things related to life
- 22. the process of moving blood throughout parts of the body
- 24. is a part of something that is organized for a specific purpose
- 26. activity that requires physical effort, done to improve health
- 28. the muscular organ that pumps blood through the circulatory system