Small circuit | Pulmonary circulation; in healthy people, oxygen-poor, carbon-dioxide-rich blood is pumped from the right ventricle via the pulmonary artery into the lungs, where oxygen is reabsorbed and carbon dioxide is released; the blood then returns via the pulmonary veins to the left atrium and thus into the large circulation. |
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Contrast medium | Substance that is introduced into the body in order to better visualise certain regions (e.g. blood vessels) during imaging examination methods (e.g. cardiac catheterisation or MRI)A |
Coronary artery | Coronary vessel |
Corrective heart surgery | Surgical restoration of the normal anatomy and function of the heart |