c l i n i c a l f o l i o s : n a r r a t i v e





A D V E R T I S E M E N T

 

Anterior Inguinal Hernia Anatomy: 4

A D V E R T I S E M E N T

   
 

The transversus abdominus muscle is the first of the three flank muscles of the abdominal wall. transversalis fascia is its deep fascial covering. Its medial and inferior borders become aponeurotic. The medial aponeurosis contributes to the deep layer of anterior rectus sheath. The inferior aponeurotic edge is the transversus aponeurotic arch which is fused to the underlying transversalis fascia. The iliopubic tract is the thickened strip of transversalis fascia attached to inguinal ligament. The transversalis fascia between the arch and iliopubic tract covers the "direct space" portion of the inguinal floor.    

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Anterior Inguinal Hernia Anatomy: 5

A D V E R T I S E M E N T

   
 

The internal oblique muscle is the next abdominal wall layer and its medial aponeurotic portion fuses with the underlying transversus aponeurosis to complete the deep layer of anterior rectus sheath. Only a small number of individuals have complete fusion at the lateral edge of the rectus muscle forming a "conjoined tendon". The genital branch of the genitofemoral nerve and the external spermatic vessels from the inferior epigastrics penetrate transversalis fascia near the deep ring and lie lateral to the spermatic cord between internal spermatic fascia and cremaster muscle.     

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Anterior Inguinal Hernia Anatomy: 6

A D V E R T I S E M E N T

   
 

The hypogastric branch of the iliohypogastric nerve lies on the surface of the internal oblique muscle in the inguinal region and the ilioinguinal nerve lies on the surface of the cremaster muscle in the inguinal canal.      

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This page was last modified on 3/1/1999.