Summary Bony Attachments of Clavicle and Scapula

BONY ATTACHMENTS OF SHOULDER.

A.CLAVICLE


1. Lateral End: -Attachment to joint capsule of Acromioclavicular joint.
2. Medial End: -Attachment to joint capsule of Sternoclavicular joint.
3. Lateral End (one-third Of shaft): -Deltoid muscle origin from
anterior border.
-Trapezius muscle insertion in posterior border.
-Conoid and trapezoid parts of Coracoclavicular ligament from
conoid tubercle and trapezoid ridge.
4. Medial End (two-thirds of shaft): -Pectoralis muscle origin from
anterior part.
-Sternocleidomastoid muscle (clavicluar head) origin from superior
surface.
-Costoclavicular ligament from oval impression on inferior surface.
-Subclavius muscle insertion on subclavian groove on inferior
surface.
-Sternohyoid muscle origin from posterior surface.



B. SCAPULA


1. Costal Aspect: -Subscapularis muscle origin from medial 2/3rd of
subscapular fossa.
-Serratus Anterior muscle insertion on medial border.
2. Dorsal Aspect: -Supraspinatus muscle origin from medial 2/3rd of
supraspinatus fossa.
-Infraspinatus muscle origin from medial 2/3rd of infraspinatus fossa.
-Teres Minor muscle origin from upper 2/3rd of lateral border.
-Teres Major muscle origin from lower 1/3rd of lateral border.
-Latissimus Dorsi muscle origin from inferior angle.
-Levator Scapulae muscle insertion along medial border from superior
angle to root of spine.