Final answer:
The median arcuate ligament connects the diaphragm to the upper part of the abdominal aorta and forms an arch over the celiac trunk. It does not have any major structures passing through it.
Step-by-step explanation:
The median arcuate ligament connects the diaphragm to the upper part of the abdominal aorta. This connection is called the diaphragmatic or crural part of the median arcuate ligament. It forms an arch over the celiac trunk, which is a branch of the abdominal aorta. The median arcuate ligament also passes over the celiac ganglia, a cluster of nerve cells. The ligament itself does not have any major structures passing through it.