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GIT ANATOMY -abdo wall, Abbre:AIC=Anterior Iliac Crest, Arcuate line…
GIT ANATOMY -abdo wall
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Internal oblique
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Insertion:10th-12th,linea alba
Origin:Thorocolumbar fascia,iliac crest, ASIS
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Inner:T7-T12,iliohypogastric n. . ilioinguinal nerve
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External oblique
Insertion: Linear alba(aponeuroses meet), pubic tubercle, AIC
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Action:bends trunk to same side,rotates=opposite(unilaterally) , flex trunk, stabilize pelvis,compress abdomen
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Rectus abdominis
Insertion: Cartilage of 5th-7th ribs,xiphoid process
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Origin:Lateral head:crest of pubis , medial head:ant. region of pubic symphysis
Flex trunk, compress abdo,stabilize pelvis
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Transversus abdominis
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Inner:T7-T12,iliohypogastric n. . ilioinguinal nerve
O:7th-12th costal cartilagesThorocolumbar fascia,iliac crest, ASIS,
Rotates trunk to same side , compresses abdo
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Arterial Blood Supply
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Superior(internal thoracic artery) & inferior(Ext. iliac artery branch) epigastric arteries-within rectus sheath
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