anterior abdominal wall : surgery

Apr 7th, 2015
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Study guide for anterior abdominal wall

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A SURGICAL ANATOMYOF THE ABDOMINALBODY WALLDR MUNGATANAMARCH 2012ABDOMINAL WALL:FUNCTIONSRELEVANCEHERNIASSURGICAL INCISIONSANTERIOR ABDOMINAL WALLConsists of Skin Adiposetissue: Panniculus adiposus Musculoaponeurotic PeritoneumlayerSkin InnervationSegmentalAnterior & lateral cutaneous branches from theventral rami T7-12, L 1& 2PanniculusSuperificial Layer: Campers fascia Continuouswith perineal, penile and dartos fascia Blood supply: superficial epigastric, superificialcircumflex iliacDeep layer: Scarpas layer Denserlayer more fibrous Continuous with fundiform ligament ofpenis/clitorisThe Anterolateral Muscles3 Myoaponeurotic layersTheir midline decussation: Linea AlbaExternal ObliqueOrigin and InsertionNote muscular interdigitationsForms inguinal LigamentTerminates duallySuperior pubic ligament Lacunar ligament then pectineal (Coopers) ligamentHas a defect called the superficial inguinal ringbetween the medial and lateral cruraeInternal ObliqueLower fibers arch over spermatic cord/roundLigt to form cremaster muscle together withtransversus abdominis (cremasteric reflex)Above umbilicus forms lamella that enclosethe rectusBelow the level of the semicircular line ofDouglas (arcuate line) passes whollyanteriorlyTransversus AbdominisAlso passes forward below the arc

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