Across
- 5. carry blood away from the heart
- 7. moves blood from the heart to the lungs and back to the heart
- 8. A flap of tissue that prevents the backflow of blood
- 10. supplies nutrients to all the tissues of the body except for heart and lungs
- 11. the smallest blood vessels where the exchange of oxygen occurs in the lungs
- 13. Branches into 2 tubes. The esophagus goes to the stomach and the trachea to the lungs.
- 16. Two large sponge-like organs that contain bronchi, bronchioles, and alveoli.
- 17. Two tubes that branch from the trachea. One goes to the left and one to the right lung.
- 18. Passage for air from the larynx to the lungs
Down
- 1. Smaller branches from the bronchi that lead to tiny sacks called alveoli
- 2. Dome-Shaped muscle under the lungs. Contracts and relaxes when you inhale and exhale.
- 3. Our_____ has four chambers it consists of two _______ and two __________, and is divided into right and left sides.
- 4. the main function is to supply oxygen and nutrients to tissue and remove waste products like carbon dioxide
- 6. movement of blood from through the tissues of the heart
- 9. carry blood toward the heart
- 12. Contains vocal chords that vibrate to make sound. The epiglottis guards the entrance to the lungs.
- 14. Main passageway for oxygen to enter and exit the body
- 15. At the end of bronchioles by capillaries. Where the exchange of oxygen and carbon dioxide takes place.