ABDOMEN. 



WHEN the body is brought into the dissecting-room, it is first 

 placed in the lithotomy position (Fig. 75), and is retained 

 in that posture for three days, during which time the dis- 

 sector of the abdomen must dissect the perineum. 



MALE PERINEUM. 



Boundaries of the Perineum. The perineum is the region 

 of the inferior end of the trunk between the thighs. It 

 corresponds with the inferior aperture or outlet of the pelvis 



FIG. 74. Inferior Aperture of Male Pelvis. 



and it is necessary, therefore, that the dissectors should 

 renew their acquaintance with that part of the skeleton 

 before they begin the dissection. Having obtained a pelvis, 

 with the ligaments in situ, they will note that the inferior 

 aperture of the pelvis is a diamond-shaped space which has 

 the following boundaries : anteriorly, the symphysis pubis 

 ii 10 a 147 



