Human Body Crossword

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Across
  1. 2. Three membranes that cover the brain and spinal cord
  2. 3. A thin tube that collects lymph from tissues
  3. 4. Non- neuronal cells that help protect, insulate, and nourish neurons
  4. 6. Branches of aorta that supply the blood to the heart.
  5. 7. The muscle cell of the heart
  6. 12. Valve located between the left atrium and left ventricle.
  7. 16. The connective tissue that binds together the nervous components of the central nervous system.
  8. 17. Small organs which help with producing and discharging saliva
  9. 18. A pair of membranes surrounding the lungs
  10. 19. A mixture of saliva and mucus coughed up from the respiratory tract
  11. 20. A rod shaped organelle of a muscle tissue helping with contracting the muscles
Down
  1. 1. A process in the kidney where glucose, amino acids, water, and ions are taken back to the bloodstream
  2. 5. A medical treatment that filters waste, toxins and excess fluid from the body when the kidneys have failed
  3. 8. Three groups of muscles running vertically along the spine
  4. 9. Lack in the amount of oxygen reaching the tissues
  5. 10. The breakdown of large food particles to smaller food particles without messing up the chemical composition of the food particle.
  6. 11. A layer of dense tissue surrounding the bones except the joints
  7. 13. A thick substance produced by the mucous membrane
  8. 14. Paired blood vessels that supply oxygen rich blood to the kidneys
  9. 15. A structure that helps link your brain to your spinal cord