Across
- 2. two short branches located at the lower end of the trachea that carry air into the lungs
- 5. Structures that conduct air from the mouth and nose to the respiratory bronchioles
- 6. tiny sacs of lung tissue specialized for the movement of gases between air and blood
- 7. A chronic allergic disorder characterized by episodes of severe breathing difficulty, coughing, and wheezing
- 8. pollutant microorganisms that exist in the atmosphere
- 9. two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration
Down
- 1. a large membranous tube extending from the larynx to the bronchial tubes and conveying air to and from the lungs
- 3. system in which the lungs and airways belong to
- 4. Airways in the lungs that lead from the bronchi to the alveoli
- 7. substances that produce allergic reactions