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Bassett Collection of Stereoscopic Images of Human Anatomy

Shoulder

Relations of supraspinatus, infraspinatus and tres minor muscles to shoulder joint, superior view

Image #94-1

KEYWORDS: Muscles and tendons, Shoulder, Upper arm, Vasculature.

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Shoulder
Relations of supraspinatus, infraspinatus and tres minor muscles to shoulder joint, superior view
The specimen shown in 93-6 is viewed here from above and somewhat laterally. The approximate positions of the insertions of the supraspinatus, infraspinatus and teres minor muscles into the greater tubercle and shaft of the humerus are indicated in the drawing at 3, 5, and 7.
1 . Serratus anterior muscle
2 . Coracoid process of scapula
3 . Position of facet on greater tubercle of humerus for tendon of supraspinatus muscle
4 . Biceps brachii muscle (long head)
5 . Position of facet on greater tubercle of humerus for tendon of infraspinatus muscle
6 . Body of humerus
7 . Area of insertion of teres minor muscle
8 . Triceps brachii muscle (lateral head)
9 . Posterior circumflex artery of humerus (cut off)
10 . Teres minor muscle
11 . Muscular branch axillary nerve (cut off)
12 . Triceps brachii muscle (long head)
13 . Teres major muscle
14 . Angle of acromion
15 . Infraspinatus muscle
16 . Rib I
17 . Clavicle
18 . Axillary vein
19 . Axillary artery
20 . Upper pointer: External jugular vein (cut off) Lower pointer: Supraclavicular part of brachial plexus
21 . Coracoacromial ligament
22 . Suprascapular nerve
23 . Omohyoid muscle (cut off)
24 . Position of acromioclavicular joint
25 . Acromion of scapula
26 . Serratus anterior muscle
27 . Supraspinatus muscle
28 . Spine of scapula