Muscle Attachments of the Anterior Abdominal Wall

Contribution of Abdominal Muscles to Core Stability

The anterior abdominal wall plays a crucial role in core stability, posture, and movement. It is composed of multiple layers of muscles that attach to various bony landmarks.

Anatomy of Abdominal Wall Muscles

Rectus Abdominis

The rectus abdominis extends vertically and attaches to the pubic symphysis and the costal cartilages of ribs 5–7.

External Oblique

The external oblique muscle originates from the lower eight ribs and inserts into the iliac crest and linea alba.

Internal Oblique

Situated beneath the external oblique, the internal oblique originates from the iliac crest and thoracolumbar fascia and inserts into the lower ribs and linea alba.

Transversus Abdominis

The transversus abdominis is the deepest abdominal muscle, providing stability by compressing abdominal contents.

Function and Core Stability

The abdominal muscles stabilize the spine, support internal organs, and assist in respiration and movement. Strengthening these muscles is essential for reducing injury risk.