Heart and Lungs

2. wind pipe
3. carbon dioxide is transferred from the blood to the ...........
6. blood first flow into this.
7. the special tubes that carry blood around our body are called blood .......................
9. the process where we take in oxygen and breathe out carbon dioxide
10. a dome shape muscle
13. the parts of the bodies that are specialized to perform particular functions
15. they help form clot after an injury
19. we can't see the .............. parts of the body without any expensive and specialized equipment
20. it makes the blood red
22. ............... carry blood away from the heart
23. one of the blood vessels
25. oxygen is used in the creation of ............. through the process of respiration
26. the smallest kind of blood vessel
28. they carry blood back to heart
29. ................. transport blood to the heart

1. part of the immune system
2. A group of the same kind of cells
4. it is attached to your nose and mouth
5. the primary function of respiratory system is to supply blood with ..............
8. the windpipe connects ............. to the lungs
11. the dome shape muscle will move down when you do this
12. pericardium prevents the heart from ...............
14. they have strong and elastic wall that can withstand the high pressure of the fast flowing blood.
16. it allows to breathe in oxygen and breathe out carbon dioxide
17. they push out blood of the heart when it contracts
18. the yellowish liquid in blood
21. it is composed of cells and materials that are organized into tissue, organs and organ systems
24. the doors that keep the blood moving in
27. we can use ................ to show body parts and how they work