Espiral AtlasSuperior and inferior transverse scapular ligaments
ligamenta transversa scapulae
Study entry
Classification
Ligaments proper to the scapula (they do not join two bones).
Surfaces
The superior one crosses the scapular notch, on the superior border, next to the base of the coracoid process, and turns it into a foramen. The inferior one runs from the lateral border of the spine of the scapula to the posterior border of the glenoid cavity. [CHECK: the inferior one does not appear in the passages of Moore that were read]
Capsule
The suprascapular nerve passes under the superior ligament, and the suprascapular artery passes over it, on the way to the supraspinous fossa. The two vessels and the nerve then wind around the spine, under the inferior ligament, toward the infraspinous fossa. [CHECK: the passage under the inferior ligament]
Movements
They have no movement of their own.
Blood supply
Not applicable (ligament); the suprascapular artery passes over the superior ligament.
Innervation
Not applicable (ligament); the suprascapular nerve passes under the superior ligament.
Clinical
The notch closed by the superior ligament is the point where the suprascapular nerve can be compressed. [CHECK]
Source: cap. 3, «Huesos del miembro superior: escápula»; tabla 3-5 (arteria supraescapular)