Dissection of anterolateral abdominal wall

Superficial vessels and nerves; Scarpa's fascia; external oblique muscles and fascia

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Image #133-1

Dissection of anterolateral abdominal wall Superficial vessels and nerves; Scarpa's fascia; external oblique muscles and fascia The left half of the specimen has been dissected to demonstrate the investing fascia (11) of the external oblique muscle and Scarpa's fascia (14). The latter is identifiable as a distinct layer of deep within the tela subcutanea in the lower part of the abdominal wall. On the right side of the specimen the fascia of the external oblique has been removed. Cutaneous nerves and vessels have been preserved bilaterally. 1 . External oblique muscle 2 . Lateral cutaneus branch intercostal nerve IX 3 . Upper pointer: Anterior cutaneus branch intercostal nerve X Lower pointer: Umbilicus 4 . Iliac crest 5 . Anterior superior iliac spine 6 . Aponeurosis external oblique muscle 7 . Inguinal ligament 8 . Fascia lata 9 . Superficial inguinal lymph nodes 10 . Superficial fascia 11 . Fascia of external oblique muscle 12 . Rectus abdominis muscle (visible through sheath of rectus) 13 . Linea alba 14 . Scarpa's fascia 15 . Branch of superficial circumflex iliac artery 16 . Superficial epigastric artery and vein