Respiratory System
Across
- 4. The windpipe; a tube that carries air from the larynx to the lungs.
- 5. The main organs of the respiratory system where gas exchange occurs.
- 7. The act of breathing in air, also known as inspiration.
- 10. A gas that is essential for the respiration of all living organisms.
- 11. A cellular process that takes place to create chemical energy from oxygen and glucose.
- 12. The voice box; a structure in the throat that contains the vocal cords.
Down
- 1. A waste gas produced by cellular respiration that must be removed from the body.
- 2. Small, branching airways within the lungs that connect the bronchi to the alveoli.
- 3. The act of breathing out air, also known as expiration.
- 6. One of the two main branches that diverges from the trachea.
- 8. Tiny air sacs in the lungs where gas exchange takes place.
- 9. A dome-shaped muscle that separates the chest cavity from the abdominal cavity and aids in breathing.