Human Anatomy of Heart

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Across
  1. 1. brings deoxygenated blood to the heart
  2. 2. brings oxygenated blood from the heart to body
  3. 4. receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which then sends it to the lungs to be oxygenated
  4. 6. sends electrical signal to the ventricles to cause contraction
  5. 8. blood vessel where gas exchange occurs and were the vessel wall is one cell thick
Down
  1. 1. fibers that transmit electrical signals to the AVnode
  2. 3. can be considered pacemaker of the heart
  3. 5. ion that binds to troponin to initiate
  4. 7. sound made with then semilunar valves close
  5. 9. sound made when the atrioventricular valves close