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By Prof. Saeed Makarem

Anterior Abdominal Wall. By Prof. Saeed Makarem. Layers of the Anterior Abdominal Wall. 1- Skin. 2- Superficial fascia: a- Superficial fatty layer, (Camper’s fascia) b- Deep membranous layer, (Scarpa’s fascia) No Deep Fascia in the anterior abdominal wall

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By Prof. Saeed Makarem

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  1. Anterior Abdominal Wall By Prof. Saeed Makarem

  2. Layers of the Anterior Abdominal Wall • 1- Skin. • 2- Superficial fascia: a- Superficial fatty layer, (Camper’s fascia) b- Deep membranous layer, (Scarpa’s fascia) No Deep Fascia in the anterior abdominal wall 3- External oblique muscle. 4- Internal oblique muscle. 5- Transversusabdominis muscle. 6- Fascia Transversalis. 7- Extraperitoneal fatty Tissue. 8- Peritoneum. Prof. Saeed Makarem

  3. Layers of anterolateral abdominal wall 1- Skin. 2- Superficial fascia: a- Superficial fatty layer (Camper’s fascia). b- Deep membranous (Scarp’s fascia). 4- Muscular layers: (External & internal oblique and transversusabdominis. 5- Fascia transversalis. 6- Extra peritoneal fatty tissue. (Space of Bogros). 7- Parietal peritoneum. Prof. Saeed Makarem

  4. Prof. Saeed Makarem

  5. External Oblique • Origin: outer surface of the lower 8 ribs. (by 8 fleshy digitations which interdigitate with serratus anterior and latissimus dorsi. • Insertion: Xiphoid process, Linea alba, Pubic crest, Pubic tubercle, ASIS. & anterior ½ of the outer lip of the iliac crest. • Direction of its fibers : Downward, Forward, and Medially. Prof. Saeed Makarem

  6. Lacunar Ligament Superficial inguinal ring Prof. Saeed Makarem

  7. superficial inguinal ring Prof. Saeed Makarem

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  11. Internal Oblique • Origin: lateral 2/3 of the inguinal ligament, anterior 2/3 of iliac crest, and lumbar fascia. • Insertion: Lower border of lower 3 ribs and their costal cartilages, xiphoid process, linea alba, symphysis pubis, pubic crest and pectineal line. • Direction of its Fibers: upward forward and medially (at right angle with the fibers of the external oblique). Prof. Saeed Makarem

  12. Transversus Abdominis • Origin: Lateral 1/3 of inguinal ligament, anterior 2/3 of inner lip of iliac crest, lumber fascia and lower 6 costal cartilages. • Insertion: Xiphoid Process, Linea alba, symphysis pubi,s Pubic crest, and Pectineal line. • Direction of its fibers: Horizontally. Prof. Saeed Makarem

  13. Prof. Saeed Makarem

  14. Rectus Abdominis Origin: • By 2 heads from pubic crest, pubic tubercle and front of symphysis pubis. Insertion: Into 5th,6th,and 7th costal cartilages and xiphoid process. It is a strap muscle that extend along the whole length of the anterior abdominal wall. It shows a transverse tendinous intersection. It is enveloped in the rectus sheath. Prof. Saeed Makarem

  15. 1 A 2 B 3 Prof. Saeed Makarem

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  17. Contents of the Rectus Sheath 2 Muscles: Rectus Abdominis & Pyramidalis. 2 Vessels : Superior & inferior epigastric vessels. 2 verves: Lower 5 intercostal & Subcostal nerves Lymph Vessels. Prof. Saeed Makarem

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