The Respiratory System
Across
- 2. We breathe out to send this gas out of our lungs
- 6. Tiny, balloon-shaped air sacs in the lungs
- 7. This organ sends blood that is low on oxygen to the lungs to fill them with oxygen again
- 8. The respiratory system is lined with a mucous membrane that secrets mucus
- 9. Tiny blood vessels located in the walls of the alveoli
- 10. A dome-shaped sheet of muscle that separates the chest from the abdomen
- 11. The pair of spongy, air-filled organs located on either side of the chest
Down
- 1. We breathe in to take this gas into our lungs
- 3. The airways that conduct air into the lungs
- 4. This tube, also known as the windpipe, connects the larynx (voice box) to the bronchi
- 5. This tube connects the throat to the stomach and is located behind the trachea and heart