Aponeurosis of the obliquus externus abdominis

Aponeurosis of the Obliquus Externus Abdominis is a flat, broad tendon that is part of the Obliquus externus abdominis, one of the outermost muscles of the abdomen. It plays a crucial role in the movement and stabilization of the trunk.

Anatomy

The Obliquus externus abdominis is the largest and most superficial (closest to the skin) of the three flat muscles of the lateral anterior abdomen. The aponeurosis of the obliquus externus abdominis is a thin but strong membranous structure, the fibers of which are directed downward and medially.

Function

The aponeurosis of the obliquus externus abdominis serves as a strong, protective layer for the muscles beneath it and helps to contain the abdominal viscera. It also provides a surface for muscle attachment, contributing to the movements of the trunk.

Clinical Significance

Injury or strain to the aponeurosis of the obliquus externus abdominis can result in abdominal pain and limited mobility. It may also be involved in conditions such as inguinal hernias.

See Also

• Abdominal external oblique muscle
• Aponeurosis
• Inguinal hernia