The Heart-Lung Relationship

  • The Heart—Lung Relationship The heart and lungs work together to maintain our blood supply.
  • As blood circulates through our body, its oxygen is consumed and replaced with (arhon dioxide.
  • The right ventricle of the heart sends the deoxygenated blood to the lungs is the pulmonary arteries.
  • These arteries closely follow the bronchial tree and terminate at the capillaries of the tiny air sacs (alveoli), where the carbon dioxide is removed and replaced once more with oxygen.
  • The reoxygenated blood is returned to the left chamber (atrium) of the heart for circulation around the body again.
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