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The rectus abdominis muscle spans from the ribs and the xiphoid process of the sternum to the pubic bones.
Long muscles of the anterior abdominal wall make up the rectus abdominis, also referred to as the "abs muscle." It forms a "six-pack" beneath the skin and is visibly seen in people with little body fat. The pubic bone is where it finishes at the rib cage.
The movement of the body between the ribs and the pelvis is the primary job of the rectus abdominis. The rectus abdominis is flanked by external oblique muscles on each side. The trunk's ability to twist is provided by the external oblique muscles, but to the side opposite to the one that is contracting.
Distally, it is attached to the sternum's xiphoid process and the costal cartilages of ribs 5-7. rectus abdominis in humans.
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