Across
- 3. in the trachea
- 4. low oxygen content in the blood
- 7. difficulty breathing when lying down, relieved by sitting or standing
- 9. oxygen and carbon dioxide exchange at the alveolar level
- 10. surgery to remove part or all of the stomach
- 12. fever free
Down
- 1. joint stiffness
- 2. air moves into and out of the respiratory system through inspiration and exhalation
- 5. an acute increase in the severity of an illness
- 6. movement of oxygenated blood into tissues
- 8. – vomiting blood
- 11. air trapped under the skin, creates a crackling feeling