Across
- 3. what do veins have ?
- 4. what are the small fragment of cells involved in blood clotting called ?
- 6. what carries blood away from the heart?
- 7. what pigments are found in red blood cells ?
- 8. what is a more concentrated solution called?
- 9. what are arteries thick walls made out of ?
Down
- 1. what releases enery ?
- 2. blood cells what forms part of the bodies defence system ?
- 5. cava what does blood pass through into the heart on the right side of the heart ?
- 8. what is a more dilute solution called?