Circulation - Respiration - Nervous System

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Across
  1. 2. disease that causes alveoli to disintegrate
  2. 5. Receive/detect incoming messages from other cells or the environment
  3. 6. Windpipe
  4. 7. Carries blood between heart and lungs
  5. 8. Voice Box
  6. 9. Bonds better with hemoglobin than oxygen
  7. 14. Communication passageways created from bundles of neuron fibers
  8. 17. Carries blood between heart and rest of body
  9. 20. Peripheral Nervous System
  10. 22. relays signals to another neuron or effector
  11. 23. Location where digestive and respiratory systems meet
  12. 24. Lower heart chambers that pump oxygenated blood to certain body organs and tissues
  13. 26. Sends commands to skeletal muscles
  14. 28. The largest blood vessel
  15. 29. Prevent back-flow of blood
Down
  1. 1. Sensory neurons carrying impulses from sense organs to CNS
  2. 3. Distributes a signal toward another neuron or effector
  3. 4. Contracts and relaxes to suck in air and to let it out
  4. 7. The only artery in the body that transports deoxygenated blood
  5. 9. Orderly contractions and relaxations of the heart
  6. 10. Smaller branches in each lung that transport air
  7. 11. chain of beadlike supporting cells
  8. 12. Cardiopulmonaresuscitation
  9. 13. Disease caused by iron deficiency
  10. 15. Transport air to each lung
  11. 16. The only vein in the body that carries oxygenated blood
  12. 18. Diffuse nutrients and oxygen into tissue
  13. 19. Nerve cell specialized for carrying signals throughout body parts
  14. 21. Nucleus and other organelles
  15. 25. Separates oxygenated blood from deoxygenated blood
  16. 27. Clusters of air sacs in the lungs