Discuss the difference between the anterior rectus sheath and posterior rectus sheath. Include relevant aponeurotic/fascial layers in your answer. Be sure to discuss the arcuate line.© BrainMass Inc. brainmass.com October 10, 2019, 8:32 am ad1c9bdddf
Anterior rectus sheath:
The upper ¾ of the anterior rectus sheath is formed by the external oblique aponeurosis and half of the internal oblique aponeurosis.
The lower ¼ of the anterior rectus sheath is formed by the aponeuroses of the external oblique, internal oblique, and transversus abdominis muscles. Each ...
This solution details the differences between the anterior and posterior portions of the rectus sheath, with special attention to the arcuate line. Two images are linked in the solution to provide additional clarification for this challenging topic in anatomy.