Across
- 1. Substance found in blood used to stop bleeding
- 4. Wall that separates the 4 chambers of the heart
- 5. Chamber of the heart which acts as a pacemaker for the heart
- 6. Blood cell used to primarily fight diseases
- 9. Blood vessels that return blood to the heart
- 10. Blood is mostly made of this substance
Down
- 2. Tubes that circulate oxygenated blood from the heart throughout the body
- 3. Blood cell used to carry oxygen throughout the body
- 7. Muscle that is responsible for pumping blood
- 8. Organ which provides the oxygen to the blood