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The Internal Oblique Muscle is one of the major muscles in the abdominal wall. It lies just below the External Oblique Muscle and above the Transversus Abdominis Muscle. This muscle plays a critical role in the movement and support of the abdominal region.AnatomyMorphology and Connection PointsThe Internal Oblique is a powerful oblique muscle located in the middle layer of the abdominal wall. Its fibers originate from the lower back portion of the thoracolumbar fascia, the anterior two-thirds of

The External Oblique Muscle is the outermost and largest of the three-layered lateral abdominal muscles. Located on the lateral and anterior abdominal wall, it stands out for its oblique (slanted) fiber structure and assists with trunk movement, increasing intra-abdominal pressure, and breathing.AnatomyMorphology and Connection PointsThe External Oblique Muscle is a broad, thin, quadrilateral muscle. It is found as muscle fibers on the lateral abdominal wall and as an aponeurotic structure on th