Term Name:	psoas major muscle
Synonyms:	m. psoas major, psoas major
Definition:	The psoas major is a long fusiform muscle placed on the side of the lumbar region of the vertebral column and brim of the lesser pelvis. It joins the iliacus muscle to form the iliopsoas. In less than 50 per cent of subjects the psoas major is accompanied by the psoas minor. [WP,unvetted].
Ontology:	Uberon Ontology [UBERON:0001298]