Across
- 1. , Trachea branches into two bronchus pipes, then these branch into smaller bronchioles.
- 5. , covered by slippery surface called the pleura that helps the lungs stick to the wall of the chest cavity.
- 6. muscles , Muscles that expand and contract lungs.
- 8. , contains the vocal cords, epiglottis, and Adam’s apple.
- 9. , Tiny air sacs where capillaries bring blood for gas exchange.
Down
- 2. Cavity,Contain hairs and mucus to collect, moisten and warm the air.
- 3. , is the “throat” and about 5 inches long.
- 4. , Separates esophagus, the flexible tube to stomach.
- 7. , Tube that leads to the lungs.