THE ABDOMINAL WALL 



219 



transversus abdominis gains its insertion into the pubic crest 

 and into the ilio-pectineal line. The aponeurosis of the 



Anterior 



branch of ilio- 



hypogastric 



Superior 

 epigastric artery 



Thoracic 

 nerve entering 

 sheath of 



Thoracic nerve 



M. transversus 

 abdominis 



Inferior 

 epigastric artery 



Linea 

 semicircularis 



Fascia trans- 

 versal is 



M. obliquus 

 internus 



M. rectus ab- 

 dominis (cut) 



Falx inguinalis 

 (O.T. conjoined 

 tendon) 



Lig. iiiRuinaie^ " ' " ^-"If 



reflexum 



Spermatic cord 



FIG. 99. Deep dissection of the Anterior Wall of the Abdomen. On the 

 left side the external oblique and the internal oblique have for the most 

 part been removed, the sheath of the rectus opened, and the greater 

 part of the contained muscle removed. On the right side the external 

 oblique, the upper part of the internal oblique, and the upper part of 

 the anterior wall of the sheath of the rectus have been removed. 



transversus abdominis constitutes the greater portion of the 

 falx inguinalis indeed, whereas the internal oblique apo- 

 neurosis has an attachment to the ilio-pectineal line of little 



