scapula, clavicle and sternum
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Clavicle
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5-7 weeks
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21 years
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sternum medially and acromion laterally
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to transmit shock from the axial skeleton
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It ossifies within cartilage, it has medial and lateral extemities and has no marrow or medullary cavity.
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spongy bone with a shell of compact bone
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sternoclavicular, interclavicular, costoclavicular, coracoclavicular, acromioclavicular
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origin of the deltiod
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insertion to the trapezius
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coracoclavicular ligament
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Pectoralis major
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the clavicular head of the sternocleidomastoid.
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costoclavicular ligament
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subclavian
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thoracic cage
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2, dorsal and ventral
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2, superior scapular and spinoglenoid
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3- superior, medial, lateral
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3-superior,medial, lateral
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3- spine, acromion, coracoid
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3- supraspinous, infraspinous, subscapula
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3- acromioclavicular, coracoclavicular, glenohumeral
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acroioclavicular, coracoclavicular, glenohumeral, superior transverse scapular, spinoglenoid (inferior transverse scapular), and costocoracoid (part of the clavipectoral fascia)
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18
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Levator Scapulae
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Teres minor, Latissimus dorsi
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rhomboid major, rhomboid minor, serratus anterior
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supraspinatous
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infraspinatous, teres major
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subscapularis
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deltoid
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long head of biceps
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long head of triceps
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short head of biceps, coracobrachialis, and pectoralis minor
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Origin-anterior surface of clavicle (anterior surface of medial two thirds of shaft of clavicle)
Insertion- lateral lip of bicipital groove
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Origin-upper margins and outer surfaces of the third, fourth, and fifth ribs
Insertion-medial border and upper surface of the coracoid process
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Origin-Anterior fibers: from the anterior border and upper surface of the lateral clavicle.
Middle fibers: from the lateral margin and upper surface of the acromion
Posterior fibers: from the lower lip of the posterior border of the spine of the scapula, as far back as the triangular surface at its medial end.
Insertion-deltoid tuberosity on the lateral shaft of the humerous
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3-anterior, middle, and posterior.
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anterior border and upper surface of the lateral clavicle.
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lateral margin and upper surface of the acromion
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ower lip of the posterior border of the spine of the scapula
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spinous processes of thoracic T7-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs, inferior angle of scapula
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floor of intertubercular groove of the humerus
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Origin-Posterior tubercles of transverse processes of C1 - C4 vertebrae
Insertion - Superior part of medial border of scapula
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Origin- lateral border of the scapula
Insertion- inferior facet of greater tubercle of the humerus
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Origin- posterior aspect of the inferior angle of the scapula
Insertion- medial lip of the intertubercular sulcus of the humerus
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Origin- nuchal ligaments and spinous processes of C7 to T1 vertebrae
Insertion- medial border of the scapula, superior to the insertion of rhomboid major muscle
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Origin- spinous processes of the T2 to T5 vertebrae
Insertion- medial border of the scapula, inferior to the insertion of rhomboid minor muscle
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Origin- external occipital protuberance, nuchal ligament, medial superior nuchal line, spinous processes of vertebrae C7-T12
Insertion- lateral third of clavicle, acromion process, and spine of scapula
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insertion- radial tuberosity and bicipittal aponeurosis into deep fascia on medial part of forearm
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short head of biceps and coracobrachialis
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Origin- infraspinous fossa of the scapula
Insertion- middle facet of greater tubercle of the humerus
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Origin- supraspinous fossa of scapula
Insertion- superior facet of greater tubercle of humerus
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Origin- subscapular fossa
Insertion- lesser tubercle of humerus
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subscapular and subacromial
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shoulder joint
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subdeltoid bursae

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glenoidal labrum (glenoid ligament)
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humerus
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upper, shaft, lower
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margin of articular surface of the head
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capsular ligament of the shoulder joint, except at the intertubercular sulcus where the long head of the tendon of the biceps emerges
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just below the tubercles
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axillary nerve and the posterior circumflex humeral artery
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long head of the biceps brachii tendon, synovial sheath of the biceps, ascending branch of the anterior circumflex humeral artery
1. long head of biceps brachii tendon
2. synovial sheath of biceps
3. circumflex humeral artery
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supraspinatus (superior part)
infraspinatus (medial part)
teres minor (inferior part)
transverse ligament of the shoulder joint is attached to the medial margin.
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subscapularis
transverse ligament of the shoulder joint
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pec major- lateral lip
latissimus dorsi- floor
teres major- medial lip
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coracobrachialis- below the midpoint of the medial border.
deltoid- above the midpoint of lateral border
brachialis arises from the anterolateral and anteromedial surface of the lower half of the shaft of the humerus.
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1. Lateral head of triceps brachii- arises from oblique ridge
2. medial head of triceps brachii arises from the infraglenoid tubercle of the scapula
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long head of triceps brachii
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area below the radial groove
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radius and coronoid process
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olecranon of the ulna
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ulnar nerve
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axillary nerve and posterior circumflex humeral artery
radian nerve and profunda brachii
median nerve and brachial artery
ulnar nerve and superior ulnar collateral artery
musculocutaneous
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clavicle, scapula, humerus
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acromioclavicular joint and the glenohumeral joint
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unstable
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the ball of the humerus is larger than the shoulder socket that holds it.