Across
- 4. one of the two tubes that connects the lungs to the trachea
- 6. collection of organs who's primary function is to take in oxygen and expel carbon dioxide
- 7. a tiny blood vessel that allows an exchange between blood and cells in other tissue artery a blood vessel
- 10. a collection of organs that transport blood throughout the body
- 13. a blood vessel that carries blood away from the heart to the body's organs
- 14. pressure the force that blood exerts on the walls of the arteries
Down
- 1. the tube that connects the larynx to the lungs
- 2. the flow of blood from the heart to the lungs and back to the heart through the pulmonary arteries , capilliaries, and veins
- 3. from the mouth to the larynx and esophagus
- 5. in biology, the exchange of oxygen and carbon dioxide between living cells and their environment; includes and cellular respiration
- 8. the area of the throat that contains the vocal cords and produces vocal sounds
- 9. a vessel that carries blood to the heart
- 11. any of the tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged
- 12. circulation the flow of blood from the heart to all parts of the body and back to the heart