Hannah Schwartz Body Systems Puzzle

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Across
  1. 2. What is the name of the tiny air sacs in your lungs?
  2. 6. _______ increases heart rate
  3. 7. The percent of muscle in the human body
  4. 12. longest bone in the human body
  5. 13. When you inhale, your lungs ______
  6. 15. you couldn't breath without the ______ system
  7. 16. A genetic disease that causes neurons in the brain to waste away and die
  8. 18. the strongest muscle in the human body
  9. 19. Another name for the skeletal system
  10. 20. Cerebral palsy affects neurons in which part of the body?
Down
  1. 1. The fatty deposits on the walls of the arteries in coronary heart disease are called ____
  2. 3. The smallest bone in your body is located in your
  3. 4. The longest muscle in the human body
  4. 5. The biggest joint in the human body
  5. 8. ______ makes blood red
  6. 9. Being ______ is a common risk factor for heart disease
  7. 10. The weakest muscle in the human body
  8. 11. One of the main functions of the nervous system
  9. 14. The respiratory system is made up of the trachea, the lungs, and the _______
  10. 17. The basic unit of the nervous system