Arcuate Line Abdomen at Anatomy

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Arcuate Line Abdomen. Abdominal wall above (a) and below (b) the arcuate line. Superiorly the rectus abdominis is supplied by the superior epigastric artery, a continuation of the internal thoracic artery.

Layers Of Abdominal Wall Above And Below Arcuate Line
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Posterior part of the internal oblique aponeurosis. The arcuate line is a horizontal line that demarcates the inferior portion of the posterior rectus sheath and is also the point where inferior epigastric vessels pierce the rectus abdominis muscle. Superior to the arcuate line, the aponeuroses of the internal.

Layers Of Abdominal Wall Above And Below Arcuate Line

The line between the upper three quarters and the lower quarter of the rectus abdominis muscle is called the arcuate line. Below the arcuate line the anterior layer of the rectus sheath is built by the aponeuroses of all three lateral abdominal muscles whereas the posterior layer is only covered by the transverse fascia and the peritoneum. The dividing plane is a horizontal line drawn through the umbilicus. The arcuate line is a horizontal line that demarcates the inferior portion of the posterior rectus sheath and is also the point where inferior epigastric vessels pierce the rectus abdominis muscle.