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Shoulder Joint. Shoulder Complex The Glenohumeral joint is the most mobile joint in the body. The shoulder complex consists of the scapula, clavicle,

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Presentation on theme: "Shoulder Joint. Shoulder Complex The Glenohumeral joint is the most mobile joint in the body. The shoulder complex consists of the scapula, clavicle,"— Presentation transcript:

1 Shoulder Joint

2 Shoulder Complex The Glenohumeral joint is the most mobile joint in the body. The shoulder complex consists of the scapula, clavicle, sternum, humerus and rib cage. The joints involved in the shoulder complex are the sternoclavicular joint, acromioclavicular joint, glenohumeral joint and scapulothoracic articulation. The Glenohumeral joint is the most mobile joint in the body. The shoulder complex consists of the scapula, clavicle, sternum, humerus and rib cage. The joints involved in the shoulder complex are the sternoclavicular joint, acromioclavicular joint, glenohumeral joint and scapulothoracic articulation. The shoulder girdle is defined as the scapula and clavicle. The shoulder joint is the articulation between the scapula and humerus at the glenoid fossa. The shoulder girdle is defined as the scapula and clavicle. The shoulder joint is the articulation between the scapula and humerus at the glenoid fossa.

3 Shoulder Complex Motions available at the shoulder joint are flexion, extension, hyperextension, abduction, adduction, medial and lateral rotation, horizontal abduction and horizontal adduction. Motions available at the shoulder joint are flexion, extension, hyperextension, abduction, adduction, medial and lateral rotation, horizontal abduction and horizontal adduction.

4 Muscles of the Shoulder Joint Deltoid Deltoid Supraspinatus Supraspinatus Pectoralis major Pectoralis major Latissiumus dorsi Latissiumus dorsi Teres major Teres major Infraspinatus Infraspinatus Teres minor Teres minor Subscapularis Subscapularis Coracobrachialis Coracobrachialis Biceps brachii Biceps brachii Triceps brachii (long head) Triceps brachii (long head)

5 Anterior Deltoid

6 O: Lateral third of clavicle O: Lateral third of clavicle I: Deltoid tuberosity I: Deltoid tuberosity A: Shoulder abduction, flexion, medial rotation and horizontal adduction A: Shoulder abduction, flexion, medial rotation and horizontal adduction N: Axillary nerve (C5, C6) N: Axillary nerve (C5, C6)

7 Middle Deltoid O: Acromion process O: Acromion process I: Deltoid tuberosity I: Deltoid tuberosity A: Shoulder abduction A: Shoulder abduction N: Axillary nerve (C5, C6) N: Axillary nerve (C5, C6)

8 Posterior Deltoid O: Spine of scapula O: Spine of scapula I: Deltoid tuberosity I: Deltoid tuberosity A: Shoulder abduction, extension, hyperextension, lateral rotation, horizontal abduction A: Shoulder abduction, extension, hyperextension, lateral rotation, horizontal abduction N: Axillary nerve (C5, C6) N: Axillary nerve (C5, C6)

9 Supraspinatus

10 Supraspinatus O: Supraspinous fossa of scapula O: Supraspinous fossa of scapula I: Greater tubercle of the humerus I: Greater tubercle of the humerus A: Shoulder abduction A: Shoulder abduction N: Suprascapular nerve (C5, C6) N: Suprascapular nerve (C5, C6) *Rotator Cuff Muscle*

11 Pectoralis Major

12 Pectoralis Major; Clavicular Portion O: Medial third of clavicle O: Medial third of clavicle I: Lateral lip of bicipital groove of humerus I: Lateral lip of bicipital groove of humerus A: Shoulder flexion (first 60 degrees) A: Shoulder flexion (first 60 degrees) N: Lateral and medial pectoral nerve (C5, C6, C7, C8, T1) N: Lateral and medial pectoral nerve (C5, C6, C7, C8, T1)

13 Pectoralis Major; Sternal Portion O: Sternum, costal cartilage of first six ribs O: Sternum, costal cartilage of first six ribs I: Lateral lip of bicipital groove of humerus I: Lateral lip of bicipital groove of humerus A: Shoulder extension (first 60 degrees) A: Shoulder extension (first 60 degrees) N: Lateral and medial pectoral nerve (C5, C6, C7, C8, T1) N: Lateral and medial pectoral nerve (C5, C6, C7, C8, T1)

14 Pectoralis Major; Clavicular and Sternal Portions A: Shoulder adduction, medial rotation, and horizontal adduction A: Shoulder adduction, medial rotation, and horizontal adduction N: Lateral and medial pectoral nerve (C5, C6, C7, C8, T1) N: Lateral and medial pectoral nerve (C5, C6, C7, C8, T1)

15 Latissimus Dorsi

16 O: Spinous processes of T7 through L5, posterior surface of sacrum, iliac crest and lower three ribs O: Spinous processes of T7 through L5, posterior surface of sacrum, iliac crest and lower three ribs I: Medial lip of bicipital groove of humerus I: Medial lip of bicipital groove of humerus A: Shoulder extension, adduction, medial rotation, hyperextension A: Shoulder extension, adduction, medial rotation, hyperextension N: Thoracodorsal nerve (C6, C7, C8) N: Thoracodorsal nerve (C6, C7, C8)

17 Teres Major

18 O: Axillary border of scapula near the inferior angle O: Axillary border of scapula near the inferior angle I: Crest below lesser tubercle next to the latissimus dorsi muscle attachment I: Crest below lesser tubercle next to the latissimus dorsi muscle attachment A: Shoulder extension, adduction and medial rotation A: Shoulder extension, adduction and medial rotation N: Subscapular nerve (C5, C6) N: Subscapular nerve (C5, C6)

19 Infraspinatus

20 Infraspinatus O: Infraspinous fossa of scapula O: Infraspinous fossa of scapula I: Greater tubercle of humerus I: Greater tubercle of humerus A: Shoulder lateral rotation, horixontal abduction A: Shoulder lateral rotation, horixontal abduction N: Suprascapular nerve (C5, C6) N: Suprascapular nerve (C5, C6) *Rotator Cuff Muscle*

21 Teres Minor

22 O: Axillary border of scapula O: Axillary border of scapula I: Greater tubercle of humerus I: Greater tubercle of humerus A: Shoulder lateral rotation, horizontal abduction A: Shoulder lateral rotation, horizontal abduction N: Axillary nerve (C5, C6) N: Axillary nerve (C5, C6) *Rotator Cuff Muscle*

23 Subscapularis

24 Subscapularis O: Subscapular fossa of the scapula O: Subscapular fossa of the scapula I: Lesser tubercle of the humerus I: Lesser tubercle of the humerus A: Shoulder medial rotation A: Shoulder medial rotation N: Subscapular nerve (C5, C6) N: Subscapular nerve (C5, C6) *Rotator Cuff Muscle*

25 Coracobrachialis

26 Coracobrachialis O: Coracoid process of the scapula O: Coracoid process of the scapula I: Medial surface of the humerus near the midpoint I: Medial surface of the humerus near the midpoint A: Stabilizes the shoulder joint A: Stabilizes the shoulder joint N: Musculocutaneous nerve (C6, C7) N: Musculocutaneous nerve (C6, C7)


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