Across
- 3. Oxygen-carrying protein in RBCs
- 5. prevents excessive bleeding
- 8. Low WBC count weakens ___
- 10. Fluid part of blood carrying nutrients and hormones
Down
- 1. Keeps blood flow one-way in heart
- 2. No.of Chambers in the human heart
- 4. Largest blood vessel
- 6. Valve preventing backflow into right atrium
- 7. System that drains excess fluid with circulatory system
- 9. Organ that pumps blood