Regio scapularis

The regio scapularis is one of three regions located at the junction of the upper limb with the trunk; lateral to it is the deltoid region.

Boundaries

 * corresponds to the circumference of the scapula



Main structures

 * paddle


 * muscles on the dorsal surface of the scapula:
 * supraspinatus muscle, infraspinatus muscle , teres minor muscle , teres major muscle

Tangible structures

 * spina scapulae
 * medial edge of the scapula
 * caudal angle of the scapula

Fascia

 * aponeurotically strengthened supraspinatus and infraspinatus fascia (they help to delimit the osteofascial spaces, together with the scapula)
 * superficial fascia on the trapezius muscle

Surface and fiber

 * skin – strong and flexible; fixed just above the spina scapulae
 * fatty tissue in the subcutaneous tissue

Holes

 * incisura scapulae – closed lig. transverse scapulae; n. suprascapularis runs under the lig. transversum scapulae in contrast to the vasa suprascapularia running above the ligament
 * foramen omotricipitale – vasa circumflexa scapulae runs here
 * foramen humerotricipitale – axillaris nerve and vasa circumflexa humeri posteriorpass here

Other structures

 * m. trapezius
 * n. accessorius (running caudally under the trapezius muscle)
 * m. subscapularis (on the front surface of the scapula)