Biology

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Across
  1. 1. aids in blood clotting
  2. 7. connects the pharynx to your stomach
  3. 9. connects your throat to your lungs
  4. 10. make up the nerves in the nervous system.
  5. 13. joint example is the neck.
  6. 15. system in charge of waste removal.
  7. 18. site of exchange for carbon dioxide and oxygen
  8. 19. carry blood to the heart
  9. 20. system in charge of movement.
  10. 21. carries blood from the heart to the body
  11. 23. system in charge of transport.
Down
  1. 2. attaches muscles to bone
  2. 3. ball-and-socket-joint
  3. 4. bottom chambers of the heart
  4. 5. the space between 2 neurons.
  5. 6. where 2 bones meet.
  6. 8. carries blood away from the heart
  7. 11. system in charge of control.
  8. 12. top chambers of the heart
  9. 14. tiny finger-like projections that absorb digested food
  10. 16. system in charge of gas exchange
  11. 17. muscle that makes up the heart
  12. 22. reaction to a stimulus