Biomedical subjects
Publications and source records attributed to P S Tewari.
1500 skulls have been studies for the preinterparietal bone. It has been found in 6 skulls (0.4%), occupying the superior angle of the occipital bone lying posterior to the parieto-occipital suture. In this study the dispute regarding the preinterparietal bone, whether a wormian bone or a separate entity, has been widely taken into account and discussed.
In the present study we found absence of semilunar valve of the coronary sinus in 2 out of 150 hearts (1.33%) and anomalous opening of the middle cardiac vein in 3 out of 150 hearts (2.0%).
The paper deals with the presence of interparietal bone in a single or more pieces out of a series of 1,500 skulls of the Anthropology Museum of Anatomy Department, GSVM Medical College, Kanpur. It was found to be present in 0.3% of cases. It has no morphological importance but it certainly has a morphogenetic bearing.