Across
- 3. a blood vessel that carries blood away from the heart to the body's organs
- 5. the clear, watery fluid that leaks from blood vessels and contains white blood cells
- 6. a tiny blood vessel that allows an exchange between blood and cells in tissue
- 7. a collection of organs whose primary function is to take in oxygen ans expel carbon dioxide
- 8. one of the two main branches of the trachea that lead directly to the lungs
- 9. the part of the respiratory system between the pharynx and the trachea
- 10. thin-walled tube that extends from the larynx to the bronchi
- 13. small, bean-shaped masses of tissue that remove pathogens and dead cells from the lymph
Down
- 1. tiny,thin-walled, capillary rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place
- 2. a network of organs and tissues that collect the fluid that leaks from blood and returns it to blood vessels
- 4. the part of the respiratory system that extends from the mouth to the larynx
- 6. a collection of organs that transport blood throughout the body
- 11. the fluid that caries gases, nutrients, and wastes through the body and that is made up of platelets, white blood cell, red blood cells, and plasma
- 12. in biology, a vessel that carries blood to the heart