Across
- 3. Gas responsible for cellular respiration
- 4. An instrument used to measure blood oxygen levels 2 words
- 7. Tiny air sacs in the lungs where gas exchange occurs
- 8. The medical term for bluish discoloration of the skin due to lack of oxygen
- 9. A respiratory infection
Down
- 1. The medical term for the sound produced when air flows through narrowed airways
- 2. Low levels of oxygen in the blood
- 5. Chronic lung disease with retained CO2
- 6. The medical term for difficulty breathing
- 7. Medical diagnosis characterized by inflammation