Abstract: 50 normal hearts of Chinese adults have been made into the specimens of the fibrous skeletons of the hearts, and input into the medical image processing system. Their structures were observed and surveyed. The left fibrous trigones and the right ones, the left atrioventricular annuluses and the right ones, the aortic annuluses and the pulmonary ones, the tendons of Todaro, the suraortic curtains, the tricuspid annuluses and the membranous septa of the fibrous skeletons of the hearts have been observed and surveyed. The survey provides 104 data in the treatise. The statistical data are supplied not only for the exploration of the fibrous skeleton and the atrioventricular junction deeply, but also for the operation of cardiac surgery and the technology of cardiac image.

Key words: fibrous skeleton of the heart, computerized medical image, anatomy of the heart Department of Anatomy, Capital University of Medical Sciences