crura
Last reviewed 01/2018
The crura are tendinous portions of the diaphragm in the lumbar region. They can be subdivided into:
- right crus
- left crus
The medial surface of both crura contribute to the median arcuate ligament. They blend with the anterior longitudinal ligament of the vertebral column.
The right crus has a more extensive origin than the left. This is because the liver is right sided and a key action of the right crus is to aid the descent of the liver with inspiration.