Medial border of scapula

Bone: Medial border of scapula
Left scapula. Dorsal surface. Medial border not labeled, but extends on the right side from the Medial angle visible at upper right to the Inferior angle labeled at the bottom
Surface anatomy of the back. (Medial border not labeled, but is visible near arrows for trapezius and rhomboideus major.)
Latin	margo medialis scapulae
Gray's	subject #50 206

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 scapulæ 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.

Additional images

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  Posterior view of the thorax and shoulder girdle.

External links

• Anatomy at Dartmouth shoulder/bones/bones2
• Anatomy at Dartmouth shoulder/surface/surface2
• radiographsul at The Anatomy Lesson by Wesley Norman (Georgetown University) (xrayleftshoulder)

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.