Across
- 2. Muscle located under lungs that contracts and relaxes when breathing in and out
- 4. The two main branches of the trachea that leads into lungs
- 5. A flap of tissue at base of the tongue that stops foods and liquids from entering the trachea
- 7. Throat area that serves as a passageway for air and food
- 9. Primary organs of the Respiratory System
Down
- 1. Windpipe, conducts air as well as filtering and moistening it
- 3. Tiny air sacs in the lungs where gas exchange occurs
- 6. Voice box, located. below pharynx
- 8. Entry point for air