MRCP UK EXAMINATIONS

Detailed explanation-1: -This is the most superficial, largest, and thickest of the 3 anterolateral abdominal wall muscles. It originates from the lower 7 ribs and runs obliquely from superior/lateral to inferior/medial (hands in pocket orientation) to insert on the anterior one-half of the iliac crest.

Detailed explanation-2: -External Oblique-the most superficial and also the largest flat muscle of the abdominal wall.

Detailed explanation-3: -External abdominal oblique is the largest and the most superficial of the lateral abdominal muscles. It lies beneath the thoracic and abdominal skin, covering the internal abdominal oblique and anterior halves of the ribs and intercostal muscles. Its muscular part contributes to the lateral part of the abdominal wall.

Detailed explanation-4: -3 flat muscles on the anterolateral side arranged from superficial to deep; external abdominal oblique, internal abdominal oblique, transversus abdominis.

Detailed explanation-5: -There are oblique abdominal muscles on each side of the rectus abdominis muscle. The external abdominal oblique muscle is the most superficial and also the largest, the internal abdominal oblique muscle lies deeper, and the transversus abdominis muscle lies deepest.