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The Symphony of Circulation and Breathing

The Symphony of Circulation and Breathing

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The heart and lungs are often studied separately, yet they operate as parts of a single functional system.

We follow oxygen from the surrounding air to the tissues and carbon dioxide on its journey back to the lungs. Pulmonary and systemic circulation, gas exchange, hemoglobin, ventilation, and perfusion reveal how breathing and circulation form one continuous physiological conversation.

Sources and further reading:

  1. Chaudhry R, Miao JH, Rehman A. Physiology, cardiovascular. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025.
  2. Powers KA, Dhamoon AS. Physiology, pulmonary ventilation and perfusion. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025.


Educational content only. Not a substitute for individualized medical advice, diagnosis, or treatment.

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