92 



TOPOGRAPHICAL ANATOMY OF THE 



abdomen proper and the pelvic cavity is on a level with the promontory 

 of the sacrum, the ilio-pectineal lines, and the cranial border of the 



pubes. The plane, therefore, lies obliquely to the long axis of the 

 abdomen proper, inasmuch as it slopes in a caudal and ventral direction. 

 The boundaries of the plane circumscribe the brim or inlet of the 



