Assertion: lumbar plexus | /r/HasProperty | the t12
Facets:
value: to l4 ventral rami
type: LOCATION
Source sentences:
text: The lumbar plexus is composed of the T12 to L4 ventral rami, which intercommunicate and coalesce to form anterior and posterior divisions in the substance of the psoas major, anterior to the transverse processes (Fig. 8-1).