Across
- 1. structure in which air enters
- 5. consists of lungs and air passages, responsible for the exchange of gases and taking in oxygen and expelling C02
- 8. Tiny hair like structures
- 9. air entrance from the nose, and it is divided into three sections
- 10. tube that divides after it leaves the trachea
- 11. cavities on the skull that surround the nasal cavity
Down
- 2. Leaf like structure, made of cartilage, that covers the larynx during swallowing
- 3. organs of respiration
- 4. located between the pharynx and trachea and contains vocal cords
- 6. tiny air sacs in the lungs
- 7. tube extending from larynx to the center of the chest