Across
- 4. the winde pipe is divided into 2 parts.
- 6. process in which oxygen is taken in and carbon dioxide is released out .
Down
- 1. larynx produce sound called.
- 2. a delicate muscular tube.
- 3. it helps in the movement of lungs
- 4. oxygen is carried by it to different parts of body.
- 5. the air passes from pharynx to 2 chambers called .