Across
- 3. to carry from one place to another
- 8. someone who specializes in the heart
- 10. having the form of a circle
- 11. a protective sac that encloses the heart
Down
- 1. exercise that raises one's heart rate
- 2. the downstairs 'rooms' of the heart
- 4. the left side of the heart receives blood from the ______
- 5. the heart has two of these, a right and left
- 6. having to do with the heart
- 7. the upstairs 'rooms' of the heart are called the
- 9. a protein found in red blood cells that carries oxygen