ABSTRACT
Komar and Varga described it as the “syndrome of the rectus abdominis muscle.”
Ventral branches of thoracic nerves are called intercostal nerves, and they live within the intercostal spaces. Running anteriorly along the ribs, the neurovascular bundle consists of a nerve, vein, and artery. The nerve lies inferior to the artery and vein. The first six intercostal nerves reach the sternum, while the six lower nerves run obliquely to the abdomen. They pierce the diaphragm, run between the oblique and transverse abdominal muscles, and reach the linea alba after passing through the rectal sheath. These nerves consist of motor and sensory fibers that innervate the surrounding abdominal musculature, as well as the skin (Figure 31.1).
