Heart

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Across
  1. 2. atrium is an upper cavity of the heart, delimited by a thin wall, which receives blood from the circulation.
  2. 4. It originates in the left ventricle of the heart and extends to the abdomen, where it branches into two smaller arteries
  3. 5. vital organ for exchanging oxygen and carbon dioxide
  4. 7. atrium Cavity in the upper right of the heart that receives deoxygenated blood transported by the superior vena cava and inferior vena cava before sending it to the right ventricle.
Down
  1. 1. Vessel carrying blue blood (desaturated with oxygen and loaded with carbon dioxide) to the right heart
  2. 2. ventricul Contraction of the left ventricle forces oxygenated blood through the aortic valve for distribution throughout the body.
  3. 3. artery arteries of the pulmonary circulation carrying deoxygenated blood from the heart to both lungs
  4. 6. ventricul Cavity in the lower left of the heart that receives oxygenated blood from the left atrium before sending it to the rest of the body via the aorta.