Across
- 4. where two or more bones meet
- 6. muscle found only in the heart
- 7. a vessel that carries blood away from the heart
- 8. the main organs of the respiratory system
Down
- 1. the low two chambers of the heart
- 2. a vessel that carries blood toward the heart
- 3. the upper two chambers of the heart
- 5. the tissue that connects bones to other bones