Across
- 2. vessels that form a network
- 3. group of similar cells
- 5. liquid produced in the mouth
- 7. 2
- 10. crossword words and hints
- 11. system that regulates internal environment and tends to maintain stability
- 13. chamber of the heart
- 14. impure blood back to heart
- 15. produced by gallbladder
- 16. of fibrous tissues in a human body
- 17. air sac of the lungs
Down
- 1. situated above the kidney
- 4. help in cutting and crushing the food
- 6. down of food so that it can be absorbed for maintenance and growth of the body
- 8. in large numbers in blood and is involved in clotting
- 9. to determine whether a person is dead or alive
- 10. cavities which get infected in case of cold
- 12. breathe through this
- 16. structure of our body is made of this