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: 7

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

   
 

The aponeurotic portion of the external oblique muscle forms the anterior wall of the inguinal canal. Its lower fibers constitute the inguinal ligament. It splits into medial and lateral crura around the spermatic cord at the pubic tubercle. The medial continuation of the aponeurosis fuses with the deep layer of anterior rectus sheath, The fusion takes place over the middle of the muscle, not at its edge, thus leaving a fascial cleft over the lateral portion of rectus muscle.     

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Anterior Inguinal Hernia Anatomy: 8

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

   
 

A hernia is a defect in a boundary layer – the transversalis fascia in the case of the inguinal region – through which contents can protrude. The protrusions stretch the surrounding abdominal wall layers. Patency and dilatation of the embryonic processus vaginalis results in an indirect hernia which opens through the deep ring lateral to the inferior epigastric vessels. A direct hernia is a weakness of the inguinal floor between epigastric vessels, falx and inguinal ligament (Hesselbach's triangle). A femoral hernia is a dilatation of the femoral canal medial to the femoral vessels within the femoral sheath.    

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