Across
- 1. A tiny branch of air tubes in the lungs; carries air to alveoli
- 5. structure in the throat containing vocal cords; helps you swallow safely; allows you to speak
- 8. a large flat muscle at the bottom of the chest cavity that helps with breathing; pulls air into the lungs, acting as a vaccuum
- 9. create mucus, lubricates and protects the lung
- 10. epithelial (thin tissue forming outer layer of body surface), specialized for creating mucus
- 11. part containing the nostrils used for breathing and smelling; filters debris, warms and moistens air
- 12. windpipe; carries air in and out of lungs
- 13. found at bottom of epidermis, replenish cilia and goblet cells as new cells are produced, push dead cells to skin's surface
Down
- 2. tiny, finger-like projections on surface of airway cells, line the airways, help move mucus up and out of lungs
- 3. a pair of breathing organs located withing the chest that remove carbon dioxide and bring oxygen to the blood
- 4. passageway for both air and food; carries air food and fluid down from nose and mouth
- 6. an opening through which food or liquid is taken in; used for eating and speaking
- 7. tiny air sack at the bottom of the lungs that provides surface area for gas exchange
- 9. a flap of cartilage at the root of the tongue that closes while swallowing to cover the windpipe
- 13. passageway leading from the trachea to a lung; moisturizes the air you breathe and filters foreign particles, carries air to and from lungs