Across
- 3. thin walled tube that extends from the larynx to th ebronchi
- 5. a tiny blood vessel that allows an exchange in blood vessels and tissue
- 6. thin walled capillary rich sac in the lungs
- 8. a blood vessel that carries blood away
- 9. the part of the respiratory system between the pharynx and the trachea
- 10. system a network of organs and tissues
- 12. system a collection of organs whose primary function is to take in oxygen
Down
- 1. the part of the respiratory system that extends from the mouth to the larnx
- 2. node small bean shaped masses of tissues that collect the fluid that leaks from blood
- 4. the fluid that carries gases
- 5. organism that eats animals
- 7. one of the two main branches of the tra that lead directy to the lungs
- 11. in biology a vessel that carries blood to the heart