<Tr> <Th> FMA </Th> <Td> 18060 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terms of muscle (edit on Wikidata) </Td> </Tr> <P> The psoas major (/ ˈsoʊ. əs / or / ˈsoʊ. æs /) (from Greek: ψόας - psóās:' of the loins', genitive singular form of ψόα - psóa' the loins') is a long fusiform muscle located 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 . </P> <P> The psoas major is divided into a superficial and deep part . The deep part originates from the transverse processes of lumbar vertebrae I-V . The superficial part originates from the lateral surfaces of the last thoracic vertebra, lumbar vertebrae I - IV, and from neighboring intervertebral discs . The lumbar plexus lies between the two layers . </P>

Where is the iliopsoas muscle located in the body
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