Across
- 3. Two external openings in the nasal cavity
- 6. The organ that separates the thorax from the abdomen
- 7. The membrane lined cavity that behind the nose and mouth
Down
- 1. An air passage to the lungs that also holds the vocal cords
- 2. A membranous tube that extends from the Larynx to the bronchial tubes
- 3. A large air filled space above and behind the nose
- 4. The organs that consist of an elastic sacs with branching passages into which air is drawn
- 5. The major air passages of the lungs that diverge from the wind pipe