1020 



SURGICAL ANATOMY OF HERNIA. 



is so considerable as to be an obvious source of weakness to the abdominal 

 parietes. It is usually smaller in the female than in the male body. 



Fig. 704. 



Fig. 704. THE APONEUROSIS OP THE 

 EXTERNAL OBLIQUE MUSCLE AND 

 THE FASCIA LATA. 



1, the internal pillar of the ab- 

 dominal ring ; 2, the external pillar 

 of the same (Poupart's ligament) ; 3, 

 transverse fibres of the aponeurosis ; 

 4, pubic part of tbe fascia lata ; 5, the 

 spermatic cord ; 6, the long saphenous 

 vein \ 7, fascia lata. 



Between the pillars of the 

 abdominal ring is stretched a 

 thin fascia, named from that 

 circumstance, " intercolumnar ; " 

 and a thin diaphanous mem- 

 brane prolonged from the edges 

 of the opening affords a covering 

 (fascia sperm atica) to the sper- 

 matic cord and the tunica vagi- 

 nalis testis. The cord, in passing 

 through the ring, lies over the 

 outer pillar. 



Fig. 705. 



Fig. 705. DEEPER DISSECTION OP THE ABDOMINAL WALL IN THE GROIN. 



The aponeurosis of the external oblique muscle having been divided and turned down, 

 the internal oblique is brought into view with the spermatic cord escaping beneath its 

 lower edge; 1, apoueurosis of the external oblique; 1', lower part of the same turned 

 down ; 2, internal oblique muscle ; 3, spermatic cord ; 4, saphenous vein. 



