INTERNAL OBLIQUE CREM ASTER. 



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direction is curved towards the thigh, where it is continuous with the fascia lata. 

 Its outer half is rounded, oblique in its direction, and continuous with the iliac 

 fascia. Its inner half gradually widens at its attachment to the pubes, is more 

 horizontal in direction, and lies beneath the spermatic cord. 



Crimbernafs ligament is that portion of the aponeurosis of the External oblique 

 which is inserted into the pectineal line; it is thin, membranous in structure, 

 triangular in shape, the base directed outwards, and passes upwards and backwards 

 beneath the spermatic cord, from the spine of the os pubis to the pectineal line, to 

 the extent of about half an inch. 



The triangular ligament is a band of tendinous fibres, of a triangular shape, 

 which is continued from Poupart's ligament at its attachment to the pectineal line 

 upwards and inwards, beneath the inner pillar of the external ring, to the linea 

 alba. 



The Internal oblique muscle has already been described (p. 283). The part which 

 is now exposed is partly muscular and partly tendinous in structure. Those fibres 

 which arise from the outer part of Poupart's ligament are thin, pale in color, 

 curve downwards, and terminate in an aponeurosis, which passes in front of the 

 Eectus and Pyramidalis muscles, to be inserted into the crest of the os pubis and 



Fig. 381. Inguinal Hernia, showing the Internal Oblique, 

 Cremaster, and Spermatic Canal. 



pectineal line, to the extent of half an inch, in common with that of the Trans- 

 versalis muscle, forming by their junction the conjoined tendon. This tendon is 

 placed immediately behind Gimbernat's ligament and the external abdominal ring, 

 and serves to strengthen what would otherwise be a very weak point in the 

 abdominal wall. When the pouch of inguinal hernia passes directly through the 

 external ring, forming what is called direct inguinal hernia, the conjoined tendon 

 usually forms one of its coverings. 



The Cremaster is a slender muscular fasciculus, which arises from the middle of 



