The anterolateral abdominal wall consists of an arrangement of muscles,fascial layers,and muscular aponeuroses lined interiorly by peritoneum and exteriorly by skin.The key landmark of the _ designates the roof of the inguinal canal and the key landmark of the __ designates the floor of the inguinal canal.

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The anterolateral abdominal wall consists of an arrangement of muscles,fascial layers,and muscular aponeuroses lined interiorly by peritoneum and exteriorly by skin.The roof of the inguinal canal is formed by the external oblique aponeurosis,and the floor is formed by the transversalis aponeurosis and fascia.Essential to an understanding of inguinal hernia repair is an appreciation of the central role of the transversalis fascia as the major supporting structure of the posterior inguinal floor.The inguinal canal is covered by the aponeurosis of the external abdominal oblique muscle,which forms a roof.

The Anterolateral Abdominal Wall Consists of an Arrangement of Muscles,fascial