Across
- 2. Tree-branching network of airways in the lungs that conducts air from the trachea to the alveoli, where gas exchange occurs. It consists of progressively smaller tubes
- 4. hollow space inside the nose that warms, moistens, and filters the air before it enters the lungs. It also helps with smell and voice resonance.
- 7. pressure exerted by a single gas in a mixture of gases
- 8. main organs of the respiratory system, responsible for taking in oxygen and removing carbon dioxide through breathing.
- 10. connects the nasal cavity and mouth to the larynx and esophagus. It helps with breathing, swallowing, and speech.
- 11. plays a key role in breathing, voice production, and protecting the airway during swallowing.
- 14. allows air to flow to and from the lungs during breathing
- 15. thin barrier in the lungs where gas exchange occurs between the air in the alveoli and the blood in the capillaries.
Down
- 1. group of neurons located in the medulla oblongata of the brainstem that controls rythym of breathing
- 3. An air filled pocket in the lungs at the end of the respiratory tree. They expand during inhalation and deflate during exhalation.
- 5. maximum amount of air a person can exhale after taking the deepest breath possible
- 6. large airway that branches off from the trachea and carries air into the lungs
- 9. substance produced in the alveoli of the lungs that reduces surface tension
- 12. is a small airway in the bronchial tree that branches off from the bronchi and leads to the alveoli, where gas exchange occurs.
- 13. body system responsible for breathing and the exchange of gases, primarily oxygen and carbon dioxide