Paralumbal fossa

The paralumbar fossa is a triangular depression located on the lateral aspect of the abdominal wall in large animals, especially ruminants (like cows). It is bordered:

• Dorsally by the transverse processes of the lumbar vertebrae,

• Cranially by the last rib

• Caudoventrally: the part of M. obliquus abdominis internus passing from the Tuber coxae to the last rib