has developmental contribution from somite border of scapula medial border of scapula EMAPA:25127 UBERON:0007174 margo medialis scapulae vertebral border of scapula FMA:23242 SCTID:368187009 medial border of the scapula Wikipedia:Medial_border_of_scapula vertebral border margo medialis (scapula) medial margin of the scapula medial part of scapula The medial border of the scapula (vertebral border, medial margin) is the longest of the three borders, and extends from the medial to the inferior angle. It is arched, intermediate in thickness between the superior and the axillary borders, and the portion of it above the spine forms an obtuse angle with the part below. This border presents an anterior and a posterior lip, and an intermediate narrow area. The anterior lip affords attachment to the Serratus anterior; the posterior lip, to the Supraspinatus above the spine, the Infraspinatus below; the area between the two lips, to the Levator scapulC& above the triangular surface at the commencement of the spine, to the Rhomboideus minor on the edge of that surface, and to the Rhomboideus major below it; this last is attached by means of a fibrous arch, connected above to the lower part of the triangular surface at the base of the spine, and below to the lower part of the border. vertebral border of the scapula