Body Systems

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Across
  1. 1. a butterfly shaped organ
  2. 7. it detects the position of the body parts
  3. 10. a clear, colorless fluid found in the Central Nervous System
  4. 12. a muscle organ in the mouth that manipulates food
  5. 14. the pale yellow liquid matrix of blood
  6. 16. the functional unit of the nervous system
  7. 17. a substance in the body that is “foreign”
  8. 18. the fluid in the circulatory system
  9. 20. ductless glands that produce hormones
  10. 21. cells cell with receptor proteins
Down
  1. 2. a pump that keeps the blood moving through the blood vessels
  2. 3. the reproductive organ in females
  3. 4. the largest and the most complex mass in the nerve tissue
  4. 5. Cord the major communication link between the brain and the Peripheral Nervous System
  5. 6. converts energy from a stimulus
  6. 8. connect one neuron to another
  7. 9. biochemicals that travel in the bloodstream
  8. 11. the outer layer of the heart wall
  9. 13. a structure projecting from the face for breathing and smelling
  10. 15. it is the protective proteins produced by th immune system
  11. 19. the interpretation of sensation