OF THE ABDOMEX. 



Intercostal muscles, the Cremaster. the spermatic cord in the male, and round liga- 

 ment in the female. Its posterior border, extending from the last rib to the crest 

 of the ilium, is fleshy throughout and free ; it is occasionally overlapped by the 

 Latissiinus dorsi. though generally a triangular interval exists between the two 

 muscles near the crest of the ilium, in which is seen a portion of the internal 

 oblige. This triangle. Pitt's triangle, is therefore bounded in front by the 



External abdo- 

 minal ring. 

 Gimbfrnafs--. 

 ligament. I 



^ 

 r Put**. 



FIG. 292. The External oblique muscle. 



External oblique, behind by the Latissimus dorsi. below by the crest of the ilium, 

 while its flooj: is formed by the Internal oblique (Fig. 287). 



The following parts of the aponeurosis of the External oblique muscle require 

 to be further described : viz. the external abdominal ring, the intercolumnar fibres 

 and fascia. Poupart's ligament, Gimbernat's ligament, and the triangular ligament 

 of the abdomen. 



The External Abdominal Ring. Just above, and to the outer side of the crest 

 of the os pubis, an interval is seen in the aponeurosis of the External oblique, 

 called the External abdominal ring. The aperture is oblique in direction, some- 



