Across
- 3. Bottom two chambers of the heart
- 4. Routes air through vocal cords to produce speech
- 6. what does the actual gas exchange
- 8. A fibrous layer that encloses the heart
- 10. passage that transports air from the nose and mouth to the trachea
- 12. A thin and smooth membrane that lines the inside chambers of the heart.
- 13. Takes DE oxygenated blood TO the heart
Down
- 1. Takes OXYGENATED blood away from the heart
- 2. Only artery to carry de oxygenated blood
- 5. The fibrous muscle tissue of the heart.
- 7. your windpipe
- 9. Sits Upon the heart muscle and covers it giving a smooth surface
- 11. the top 2 chambers of the heart