Across
- 2. blood pressure that is too low....
- 5. the average adult heart beat is 60 to 100 times per....
- 6. the heart is made up of....
- 8. you would not survive without a....
- 10. what is the name of the tubes that carry blood....
- 13. the heart is located between the two....
- 14. Blood turns red when mixed with....
Down
- 1. together the heart and the blood is called the....
- 3. The heart has four....
- 4. the average weight of the human heart is 230-300....
- 7. the heart is the size of your....
- 9. the only times when the heart gets a rest is between....
- 11. the heart is an....
- 12. the average person has around 500 litres of....
- 15. the heart beats around 30 million times a....