Medical Crossword Puzzle

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Across
  1. 3. The inability to have children
  2. 7. Hormone that controls the day and night cycles of the body
  3. 8. Crack or break in a bone
  4. 10. Soft substance inside bones
  5. 12. Process of moving blood from one person into another person
  6. 14. The gonads in the female body
  7. 15. The first part of the small intestine
Down
  1. 1. Organ located in the skull
  2. 2. Large organ that process nutrients and detoxifies harmful substances in the blood
  3. 4. The outermost layer of human skin
  4. 5. Cordlike structure that enables the transmission of electric impulses through the nervous system
  5. 6. Wound resulting from minor damage to the epidermal layer of the skin
  6. 9. Serious condition wgen the cardiovascular system cannot cope with the blood supply to the body
  7. 11. Natural and synthetic antimicrobial substances
  8. 13. Liquid that contains blood cells