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LIVING ANATOMY MEGAEXAMINER [rollover and click to display]

 


Layers of abdominal Abdominal wall anatomy video

 
Examination of abdomen by regions
 

  DIGITAL LOCATOR OF ABDOMEN: Layer 1 Skin of abdomen (anterior abdominal wall). Layer 2- Layer of Camper's fascia. Layer 3 - layer of Scarpa's fascia. Layer  4 - layer of external oblique muscle/aponeurosisLayer 5- layer of rectus sheath. Layer 6- layer of internal oblique. Layer 7 - layer of transversus abdominis. Layer 8- layer of transversus abdominis/parietal peritoneum. Layer 9- layer of greater sac of peritoneum. Layer 10- layer of small intestine. Layer 11- layer of transverse colon. Layer 12- layer of posterior abdominal wall. Layer 13 - layer of deep posterior abdominal wall. Layer 14 - layer of bones of abdominal region..

 

 

Skin:

The skin of the anterior abdominal wall is lax. It is distensible also to accommodate the ever increasing abdominal cavity. It has Langerís lines running transversely and incision made on those lines (e.g. Pfannenstiel) heals with minimum of scar tissue formation.

Superficial fascia:

Superficial fascia of the anterior abdominal wall is divided into two and this is best seen below the umbilicus. It has no deep fascia.

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Superficial Camperís fascia is fatty. It contains loose areolar tissue.

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Deeper Scarpa's fascia is membranous. It extends to the perineum as the Colles fascia, and it is attached to the fascia lata of the anterior aspect of thigh, to the dartos  muscle of scrotum, to the sides of the pubic bones, and to the suspensory ligament of penis or clitoris.

Various structures underneath the skin and superficial fascia can be palpated in clinical examination on the anterior abdominal wall or in living anatomy laboratory practical. The digital locator helps to locate such structures.

 

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Creator: Oluwole Ogunranti

 

 

 

 
 
Anterior abdominal wall from back Anterior abdominal wall from front
1 innermost intercostal muscle 2 rectus sheath  (posterior wall and parietal peritoneum together with transversalis fascia 3 Internal thoracic vessels 4 intercostal vessels and nerves 1 pectoralis major  2 anterior wall of rectus sheath with aponeurosis of external oblique muscle in front 3 external oblique muscle of abdomen 4 innermost intercostal muscle 5 external intercostal muscle 6 internal intercostal muscle with intercostal vessels and nerves

 

 


Anterior abdominal wall in the female

 

Surface markings

 

1 External oblique muscle of abdomen 2 Tendinous intersections of rectus abdominis     Surface projection of some abdominal viscera: 1 liver 2 spleen 3 duodenum 4 left kidney 5 pancreas

Right lung Left lung Heart Stomach Spleen Small intestine Pelvic corridor Kidney Kidney Sigmoid colon Cecum Appendix Penis Scrotum

 
    Click structures to display  

 

Yellow is peritoneal cavity; brown is retroperitoneum

 

 

 


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