The heart anatomy

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Across
  1. 4. heart strings, cord like tendons that
  2. 7. superior chambers receive blood returning from pulmonary and systemic circuits
  3. 8. project from the walls into the ventricular cavity
  4. 9. inferior chambers that pump blood around the two circuits
Down
  1. 1. right atrium pumps into right ventricle through the
  2. 2. receives oxygen poor blood, then pumps to lungs
  3. 3. receives oxygenated blood from lungs
  4. 5. superior and inferior vessels returning blood to the heart
  5. 6. lies in the thorax posterior to the sternum, left of the midline and rest on superior surface of diaphragm.