Across
- 1. The heart has four ________.
- 2. The part marked ‘2’ in the diagram.
- 6. The part marked ‘1’ in the diagram.
- 7. The heart pumps this around the body.
- 10. The type of blood in the right hand side of the heart.
- 12. The part marked ‘4’ in the diagram.
- 13. A high tech piece of equipment used to measure pulse rate.
Down
- 1. A type of blood vessel that is only one cell thick.
- 3. The part marked ‘3’ in the diagram.
- 4. The type of blood in the left hand side of the heart.
- 5. These stop blood flowing in the wrong directions.
- 8. The heart is made of this.
- 9. Type of blood vessel that takes blood to the heart.
- 11. Type of blood vessel that takes blood away from the heart.
- 14. The side of the heart which has the thickest muscle.