About 500 years ago, the great scientist Leonardo da Vinci first sketched a detailed image of a system of mysterious folds that are located in the ventricles of the human heart. This illustration is considered the first to be made for medical purposes, although the existence of "heart folds" has been known since ancient times. But their purpose remained a complete mystery - until recently.
The scientific name of these folds is "trabeculae carnae", among them "trabecula septomarginalis" stands out clearly. For a long time, it was believed that this powerful fold covers the nerve bundle and can press on it, controlling the flow of blood through the ventricle. This is necessary, in particular, to prevent excessive inflation.
Modern scientists believe that the location and size of the heart folds are individual. And deciphering their patterns can be the key to recognizing the nature of possible heart failure. Scientists from the London Institute of Medicine conducted modeling and studied many versions of fractal patterns of trabeculae, after which they came to the conclusion that their pattern really affects the flow of blood through the heart. Just as dimples on the surface of a golf ball improve air flow, folds make it easier for blood to flow through the heart.