Homeostasis and Body Systems

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Across
  1. 3. a nerve cell
  2. 6. absorbs nutrients in the food
  3. 7. a reaction to stimulus
  4. 10. is made up cells that work together to perform a specific function
  5. 13. a hormone produced in the pancreas that regulates the amount of glucose in the blood
  6. 14. carries a signal from one nerve cell to another
  7. 15. a loop system in which the system responds to positive feedback or negative feedback
  8. 18. the narrow, winding, upper part of the intestine where digestion is completed and nutrients are absorbed by the blood
Down
  1. 1. is made up of tissues to perform a specific function
  2. 2. a large protein which speeds up chemical reactions
  3. 4. the process of breaking down food
  4. 5. the process of taking in substances
  5. 7. receives chemical signals from outside the cell
  6. 8. a natural substance that is produced in the body and that influences the way the body grows or develops
  7. 9. is a molecule that is acted upon by an enzyme
  8. 11. a detectable change in the internal or external environment.
  9. 12. organs whose function is to remove carbon dioxide from the blood and provide it with oxygen
  10. 16. the ability of an organism or cell to maintain internal equilibrium
  11. 17. the structural and functional unit of the kidney
  12. 19. a sac in the lungs where the exchange of oxygen and carbon dioxide takes place