respiratory system

1. A tiny branch of air tubes in the lungs.
3. situated or extending between the ribs.
7. a tough and flexible tissue that lines joints and gives structure to the nose, ears, larynx, and other parts of the body.
8. The area of the throat containing the vocal cords and used for breathing, swallowing, and talking.
9. One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body.
11. either of the two primary divisions of the trachea that lead respectively into the right and the left lung broadly

2. is the flow of the breath out of an organism.
4. is part of the respiratory system and digestive system. It carries air, food and fluid down from the nose and mouth
5. the process of movement of molecules under a concentration gradient
6. A protein inside red blood cells that carries oxygen from the lungs to tissues and organs in the body and carries carbon dioxide back to the lungs.
10. The airway that leads from the larynx (voice box) to the bronchi