Across
- 1. The hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans
- 4. A tube-like structure having cartilaginous ring outside
- 5. A tiny branch of air tube in the lungs
- 7. A dome-shaped musucular organ that plays a major role in breathing by contracting and relaxing.
- 8. Air enters first through this passage
Down
- 2. Many tiny air sacs of the lungs which allow for rapid gaseous exchange.
- 3. Major air passages of the lungs which divide from the windpipe.
- 6. A cavity behind the nose and mouth connecting to the oesophagus