Relating to or involving both the heart and lungs together, especially in describing their combined function in circulation and respiration.
From Greek 'kardia' (heart) + Latin 'pulmonarius' (relating to lungs). This compound term became standard in medicine in the 20th century.
CPR stands for cardiopulmonary resuscitation—it combines chest compressions (heart) with rescue breathing (lungs), and it works because these two organs must function together to keep you alive.
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