Across
- 1. stores urine
- 8. flow of blood from the heart to the lungs and back to the heart
- 9. metabolic wastes are eliminated from the body
- 10. act of taking in air
Down
- 2. Tissue that seals off the windpipe and prevents food from enterin.
- 3. Filters waste from the blood like urea,
- 4. two openings in the nose.
- 5. a condition in which blood flow to part of the heart muscle is blocked, causing heart cells to die
- 6. Breathing out
- 7. voice box; passageway for air moving from pharynx to trachea