The Klapp method is a unique method of studying the ventricles of the heart, proposed by the famous German surgeon Rudolf Klapp. The history of the creation of the method goes back to the beginning of the 20th century, when Dr. Clapp worked at the Department of Anatomy of the University of Göttingen, where he performed surgical operations dedicated to the search for drugs to protect the heart muscle from damage. Before him, all methods of examining the ventricles were based on