What Is an Arcuate Ligament?

The lumbocostal ligament is a phenomenon of the human body. It is weak in the chest and back area, covering the surface of the erector spinae muscles, continuing the fascia upwards, attaching the medial to the spinous process of the thoracic spine and the superior spinal ligament, attaching the laterally to the rib angle, thickening down to the lumbar area, and divided into anterior and posterior, Middle and last three floors. The posterior layer covers the back of the erector spinae, and the aponeurosis of the latissimus dorsi and inferior posterior serratus muscles heals, attaches downward to the iliac crest, and attaches to the lumbar spinous process and superior spinal ligament on the medial side, and the lateral side is on the lateral edge of the erector spinae Healing with the middle layer, the posterior and middle layers together form the erector spinae muscle sheath; the middle layer is located between the erector spinae muscle and the lumbar quadriceps muscle, and the medial layer is attached to the lumbar transverse process tip and intertransverse ligament; The layers are healed, and the middle and front layers together form the lumbar quadriceps sheath, which serves as the aponeurosis at the beginning of the transverse abdominal muscle. It attaches upward to the lower edge of the 12th rib and attaches downward to the diaphragm.

Lumbocostal ligament

Right!

The lumbocostal ligament is a phenomenon of the human body. It is weak in the chest and back area, covering the surface of the erector spinae muscles, continuing the fascia upwards, attaching the medial to the spinous process of the thoracic spine and the superior spinal ligament, attaching the laterally to the rib angle, thickening down to the lumbar area, and divided into anterior and posterior, Middle and last three floors. The posterior layer covers the back of the erector spinae, and the aponeurosis of the latissimus dorsi and inferior posterior serratus muscles heals, attaches downward to the iliac crest, and attaches to the lumbar spinous process and superior spinal ligament on the medial side, and the lateral side is on the lateral edge of the erector spinae. Healing with the middle layer, the posterior and middle layers together form the erector spinae muscle sheath; the middle layer is located between the erector spinae muscle and the lumbar quadriceps muscle, and the medial layer is attached to the lumbar transverse process tip and intertransverse ligament; The layers are healed, and the middle and front layers together form the lumbar quadriceps sheath, which serves as the aponeurosis at the beginning of the transverse abdominal muscle. It attaches upward to the lower edge of the 12th rib and attaches downward to the diaphragm.

Chinese name

Lumbocostal ligament

Foreign name

Lumbar rib ligament

Location

Dorsal area

Cover

Cover the surface of the erector spinae

The upper part of the thoracolumbar fascia thickened between the 12th rib and the 1st lumbar vertebra process is thickened, which is called the lumbar rib ligament. During kidney surgery, cutting this ligament can increase the mobility of the 12th rib and facilitate the exposure of the kidney;

The anterior layer is located in front of the psoas muscle, also known as the psoas muscle fascia. The medial side of the fascia is attached to the tip of the transverse process of the lumbar vertebra, and it is attached to the sacro-lumbar ligament and the posterior condyle. The upper part of the fascia is curved and attached between the second lumbar transverse process and the 12th rib. The medial ligament is the medial arcuate ligament that crosses the surface of the psoas major muscle and is attached to the side of the first lumbar vertebra and the second lumbar vertebra process.