Supraspinatus

The supraspinatus is very constant in form and attachments. Macalister called the muscle singularly invariable. However, very rare variations include the following:

a) the division of its belly into two parts, b) an additional slip that arises from the suprascapular ligament, c) a connection between its tendon and that of pectoralis minor, d) a slip passing from its tendon to that of pectoralis major or to the pectoral ridge of the humerus, and e) attachment to a tendinous lamella below the insertion of pectoralis major on the humerus.

Syn.: m. Obergrätenmuskel, Sus-épineux.

Riferimenti dell’opera originale

Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.

• Anson, B.J., Ed. (1966) Morris' Human Anatomy,12 ed. The Blakiston Division, McGraw-Hill Book Company New York.
• Henle, J. (1871) Handbuch der Muskellehre des Menschen, in Handbuch der systematischen Anatomie des Menschen. Verlag von Friedrich Vieweg und Sohn, Braunschweig. 1-130.
• Latarjet, A. Testut's Traitéd'Anatomie Humaine,9th ed. G. Doin & Cie., Paris.
• LeDouble, A.F. (1897) Traité des Variations du Système Musculaire de l'Homme et leur Significance au Point de Vue de l'Anthropologie Zoologique. Libraire C. Reinwald, Schleicher Freres, Paris.