ATTACHMENTS OF SCAPULA
1 The multipennate Subscapularis arises fron the medial two-thirds of the subscapular fossa .
2. The supraspinatus arises from the medial two-thirds of the supraspinous foSsa including the upper surtace of the spine .
3. The infraspinatus arises from the medial two-thirds of the infraspinous fossa, including the lower surface of the spine .
4 The deltod arises from the lower border of the crest of the spine and from the lateral border of the acromion .
The acromial fibres are multipennate.
5. The trapezius is inserted into the upper border of the crest of the spine and into the medial border of the acromion.
6. The serratus anterior is inserted along the medial border of the costal surface; one digitation from the superior angle to the root of spine, two digitations to the medial border, and five digitations to the inferior angle .
7. The long head of the biceps brachii arises from the supraglenoid tubercle; and the short head from the lateral part of the tip of the coracoid process .
8. The coracobrachialis arises from the medial part of the tip of the coracoid process.
9. The pectoralis minor is inserted into the medial border and superior surtace ot the coracoid process .
10. The long head of the triceps brachii arises from the infraglenoid tubercle.
11. The teres minor arises by 2 slips from the upper two- thirds of the rough strip on the dorsal surface along the lateral border. circumflex scapular artery lies between the two slips.
12. The teres major arises from the lower one-third of the rough strip on the dorsal aspect of the lateral border. Latissimus dorsi arises from inferior angle.
13. The levator scapulae is inserted along the dorsal aspect of the medial border, from the superior angle up to the root of the spine.
14.The rhomboid minor is inserted into the medial border (dorsal aspect) opposite the root of the spine.
15. The rhomboid major is inserted into the medial border (dorsal aspect) between the root of the spine and the inferior angle.
16. The inferior belly of the omohyoid arises from the upper border near the suprascapular notch.
17. The margin of the glenoid cavity gives attachment to the capsule of the shoulder joint and to the glenoidal labrum (Latin lip).
18. The margin of the facet on the medial aspect of the acromion gives attachment to the capstle of the acromioclavicular joint .
19. The coracoacromial ligament is attached: (a) to the lateral border of the coracoid process, and (b) to the medial side of the tip of the acromion process.
20. The coracohumeral ligament is attached to the root of the coracoid process.
21. The coracoclavicular ligament is attached to the coracoid process: The trapezoid part on the superior aspect, and the conoid part near the root.
22. The transverse ligament bridges across the Suprascapular notch and converts it into a foramen which transmits the suprascapular nerve. The suprascapular vessels lie above the ligament.
23. The spinoglenoid ligament may bridge the spinoglenoid notch. The suprascapular vessels and nerve pass deep to it.
