Anterior and lateral abdominal wall

Abdominal aponeuroses & linea alba

Structure, mechanical relationships and comfortable observation.

Anatomy and attachments

The broad aponeuroses of external oblique, internal oblique and transversus abdominis contribute to the rectus sheath. They interweave at the midline to form the linea alba, from xiphoid process to pubic symphysis. Their arrangement changes along the abdomen, particularly below the arcuate line.

Mechanical role

Transmit abdominal muscle forces, support abdominal contents and contribute to pressure regulation and trunk control alongside the diaphragm and pelvic floor.

Building broader Myos patterns

Record what changes with position, support and task. Consider neighboring muscles, joints, nerves and load demands. Keep anatomical connections and observed responses distinct as the pattern develops.