Across
- 5. This vein brings oxygenated blood to the heart (9)
- 6. Veins have these to prevent the back flow of blood (6)
- 7. The major vein that brings blood from the rest of the body back to the heart (4,4)
- 11. Arteries carry blood under high ___________ (8)
- 12. The bottom chambers of the heart (10)
- 14. This blood vessel transports blood away from the heart (6)
- 15. A double circulatory system pumps the blood once to the ______ and once around the body (5)
- 17. Capillaries are thin to enable a short ____________ distance (9)
Down
- 1. The top chambers of the heart (5)
- 2. Humans have a _________ circulatory system (6)
- 3. These arteries supply the heart muscle with oxygenated blood (8)
- 4. A group of cells located on the right atrium which controls the heart rate (9)
- 8. This blood vessel is thicker than veins (6)
- 9. The major artery thats transports blood from the heart to the rest of the body (5)
- 10. This is a network of tiny vessels linking the veins and arteries (11)
- 13. These fibres are found in the arteries and allow them to recoil (7)
- 16. This blood vessel transports blood towards from the heart (4)