The importance of the transversalis fascia can scarcely be exaggerated. How it has escaped the emphasis it deserves is inexplicable. Few anatomists have seen it complete. Fewer surgeons appreciate its existence. Books on anatomy dismiss the graphic description of this relatively all-pervading abdominal tissue with one paragraph. Yet the transversalis fascia in its entirety is second in importance perhaps only to the peritoneum as an encasing membrane of the abdominal contents—now reenforcing, now merging into one with the parietal peritoneal tissue on the one hand and with the abdominal aponeurotic fibers on the other. Where function demands, it thickens and develops its strong elastic fibers to a protective perfection.
The purpose of this paper is to describe in detail the distribution of the transversalis fascia as observed in a large series of dissections on cadavers carried out over a period of seven years. It is likewise desired to emphasize