Across
- 1. The flap that covers the trachea during swallowing so that food does not enter the lungs
- 3. Cords either of two folds of mucous membrane that extend across the interior cavity of the larynx and are primarily responsible for voice production
- 7. any of the minute branches into which a bronchus divides
- 8. fluid is the fluid-filled space in between the parietal and visceral layers of the pleura.
- 9. are a pair of breathing organs located with the chest which remove carbon dioxide from and bring oxygen to the blood. There is a right and left lung
- 12. the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.
- 13. A thin layer of tissue that covers the lungs and lines the interior wall of the chest cavity. It protects and cushions the lungs. This tissue secretes a small amount of fluid that acts as a lubricant, allowing the lungs to move smoothly in the chest cavity while breathing
- 14. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box
- 15. The large air passages that lead from the trachea (windpipe) to the lungs
Down
- 2. a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.
- 4. a short microscopic hairlike vibrating structure found in large numbers on the surface of certain cells
- 5. located below the lungs is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time
- 6. tiny air sacs at the end of the bronchioles (tiny branches of air tubes in the lungs).
- 10. cavity The space inside the nose above the bone that forms the roof of the mouth and curves down at the back to join the throat. It is divided into two sections called nasal passages. Air moves through these passages during breathing
- 11. Gradient The difference in the concentration of a substance between two areas is called