Human Body

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Across
  1. 7. Something that provides support to neurons.
  2. 8. Supplies oxygen-rich blood to the body.
  3. 11. Transmits impulses between other neurons.
  4. 12. When urine is conveyed out of the body.
  5. 15. The gap in between neurons.
  6. 17. The separation of particles on a liquid basis
  7. 18. The first part of the small intestine.
Down
  1. 1. Three muscles aligned along the spine
  2. 2. Elongated contractile threads found in muscle.
  3. 3. Something in your mouth that produces saliva.
  4. 4. Aligns the thorax and envelopes the lungs.
  5. 5. 4 valves open in the heart to make sure the heart pumps blood evenly.
  6. 6. Line up the respiratory track.
  7. 9. Muscle that forms an air passage.
  8. 10. A dense layer of connective tissue enveloping the bones.
  9. 13. A product that breaks down proteins.
  10. 14. A semi-fluid mixture formed in the stomach during digesting food.
  11. 16. A red protein in your blood cells that carry oxygen from your lungs to the rest of your body. It also returns carbon dioxide to your lungs.