Science crossword puzzle

123456789101112131415
Across
  1. 2. the part of the throat that contains the vocal cords
  2. 7. the windpipe
  3. 8. the trachea that spilts into two branches
  4. 9. the way the body gains and uses oxygen and gets rid of carbon dioxide and water
  5. 10. the flow of blood from the heart to the lungs and back to the heart through the pulmonary arteries, capillaries, and veins
  6. 13. a blood vessel that carries blood away from the heart to the body's organs
  7. 15. each bronchiole branch that forms tiny sacs
Down
  1. 1. the flow of blood from the heart to all parts of the body and back to the heart
  2. 3. a tiny blood vessel that allows an exchange between blood and cells in tissue
  3. 4. a collection of organs that transport blood throughout the body
  4. 5. the group of organs that take in oxygen and get rid of carbon dioxide
  5. 6. the fluid that carries gases, nutrients, and wastes through the body and is made up of platelets, whits blood cells, red blood cells, and plasma
  6. 11. the throat
  7. 12. a vessel that carries blood to the heart
  8. 14. pressure the force that blood exerts on the walls of arteries