Muscle, Iliocostalis (M. Iliocostalis, Pna, Bna, Jna)

The iliac rib muscle (iliocostalis) is a muscle that is located in the abdominal cavity and is involved in the formation of the abdominal wall. It consists of two parts - the iliac and the costal.

The iliac rib, or iliac margin, is one of the main elements of the abdominal muscles. It starts from the pubic bone and goes down to the ribs. The iliac ribs form the strongest part of the abdominals and help support the internal organs.

The costal ribs, or costal margins, start from the ribs and extend upward to the iliac ribs. They are also involved in the formation of the abdominal muscles, but their function is to support the spine and chest.

The iliac rib muscle plays an important role in the formation of the abdominal wall. It is involved in the work of the abdominal muscles and helps support the internal organs, as well as ensures the movement of the spine and chest. In addition, it is involved in the formation of the waist and plays an important role in the aesthetics of the body.

In conclusion, we can say that the iliocostalis muscle is one of the most important abdominal muscles. It plays an important role in supporting the internal organs, forming the abdominal wall and performing movements of the spine and chest.