Respiratory system
Across
- 3. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.
- 6. exhalation of breath.
- 8. Tiny air sacs at the end of the bronchioles
- 9. During inhalation (top), the diaphragm descends and air fills the lungs.
Down
- 1. The hollow tube inside the neck that starts behind the nose and ends at the top of the trachea
- 2. The large air passages that lead from the trachea (windpipe) to the lungs
- 4. two external openings of the nasal cavity in vertebrates that admit air to the lungs and smells to the olfactory nerves.
- 5. the area of the body between the chest and the pelvis where the intestines are located
- 6. the muscle tube that allows food to travel from the throat to the stomach.
- 7. 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.