Respiratory System

1. any of the major air passages of the lungs which diverge from the windpipe.
8. breathing out
9. any of the minute branches into which a bronchus divides.
11. the membrane-lined cavity behind the nose and mouth connecting them to the esophagus
12. technically the scientific name for the mouth
16. a large, air-filled space above and behind the nose in the middle of the face
17. thin skeletal muscle that sits at the base of the chest and separates the abdomen from the chest
18. any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange
19. A small bean-shaped structure that is part of the body's immune system

2. relating to or affecting respiration or the organs of respiration
3. hollow spaces within the bones between your eyes, behind your cheekbones, and in your forehead
4. provides a passageway for air to move into and out of each lung
5. the long tube that connects your larynx (voice box) to your bronchi
6. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals
7. a muscular tube connecting the throat (pharynx) with the stomach
10. in the chest between the lungs
13. the region between the abdomen inferiorly and the root of the neck superiorly
14. each of a pair of serous membranes lining the thorax
15. breathing in