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20 Cards in this Set
- Front
- Back
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Pectoralis Major |
O= Clavicular part- medial half of clavicle Sternal part- sternum, upper 6 costal cartilages I= Lateral lip of intertubecular groove (below greater tubercle) A= Adduction, Internal rotation N= Medial and lateral pectoral nerves |
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Pectoralis Minor |
O= Ext surfaces of rib 3-5 I= Coracoid process A= Draws scapula downwards, Accessory muscle during resp (raises ribs) N= Medial pectoral nerve |
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Subclavius |
O= Junction of 1st rib + its costal cartilage I= Groove on inferior surface of clavicle A= Depresses clavicle, draws shoulder forward + downward, stabilises clavicle during movement of shoulder girdle N= Subclavian nerve (branch of the brachial plexus) |
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Coracobrachialis |
O= Coracoid process I= Medial surface of humeral shaft (between brachialis muscle + medial head of triceps) A= Weak adduction N= Musculocutaneous nerve (C6,7) |
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Biceps Brachii |
O= Long head- supraglenoid tubercle Short head- coracoid process I= Radial tuberosity, bicipital aponeurosis into deep fascia on medial part of forearm A= Forearm: Supination, flexion Shoulder: Weak flexion N= Musculocutaneous nerve (C5,6) |
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Brachialis |
O= Anterior of lower half of humerus I= Ulna tuberosity, Coronoid process A= Flexion of forearm N= Musculocutaneous nerve (C5,6) |
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Trapezius |
O= Medial 1/3 of superior nuchal line, external occipital protuberance, ligamentum nuchae, sp's + supraspinous ligaments of C7-T12 I= Lateral 1/3 of clavicle, acromion process, spine of scapula A= Arm: Abduction (from 90-180, scap upward rot) C spine: Extension, side bending N= Accessory nerve |
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Latissimus Dorsi |
O= sp's T7-12, lumbar vertebrae, supraspinous ligament, sacral vertebrae, posterior part of iliac crest through thoracolumbar fascia, lower 4 ribs, inferior angle of scapula I= Bottom of bicipital groove A= Extension, adduction, internal rotation N= Thoracodorsal nerve (C6-8) |
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Levator Scapulae |
O= Posterior tubercles of TP's of C1-4 I= Medial border of scapula at+above spine A=C spine: side bending Scap: elevates medial border, rotation to depress lateral border N= Dorsal scapular nerve |
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Rhomboid Major |
O= Sp T2-5, Supraspinous ligament I= Medial border of scapular (below spine) A= Retract + stabilise scapula, elevates medial border > downward rotation, assists in adduction of arm. N= Dorsal scapular nerve |
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Rhomboid Minor |
O= Sp's C7-T1, lower part of lig nuchae I= Medial border of scap at root of spine A=Retracts + stabilises scapula, elevates medial border, rotates scap to depress lateral angle (assists in adduction of arm N= Dorsal scapular nerve |
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Serratus Anterior |
O= Outer surfaces of first 8 ribs I= Anterior (costal) surface of medial border of scap A= Arm- flexion, abduction (as it rotates cap) Scapula- protraction N= Long thoracic nerve (C5-7) |
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Deltoid |
O= Anterior portion- Anterior border and superior surface of lateral 1/3 of clavicle Middle - acromion process (lateral border) Posterior - spine of scapula (lower border of crest) I= Deltoid tuberosity A= Ant.: Flexion, internal rotation Mid. : Abduction Post. : Extension, external rotation N= Axillary nerve |
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Supraspinatus |
Rotator cuff O= Supraspinous fossa I= Upper part of greater tuberosity of humerus, joint capsule A= Arm: Abduction (aids deltoid), weak flexion Draws humerus towards glenoid fossa preventing deltoid from forcing humerus> acromion N= Suprascapular nerve (C5) |
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Infraspinatus |
Rotator cuff O= Infraspinous fossa I= Middle facet of greater tuberosity of humerus, joint capsule A= Abduction, external rotation, Draws humerus>> glenoid fossa to resist posterior dislocation N= Suprascapular nerve (C5-6) |
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Teres Minor |
Rotator cuff O= Lateral border of scapula I= Greater tubercle of humerus (lower facet), joint capsule A= External rotation, weak adduction, draws humerus towards glenoid fossa N= Axillary nerve (C5) |
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Subscapularis |
Rotator cuff O= Subscapular fossa I= Lesser tuberosity of humerus, ventral part of capsule A= Internal rotation, stabilises GH joint N= Upper + lower subscapular nerves |
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Teres Major |
O= Dorsal surface of inferior angle of scapula I= Medial lip of bicipital groove (crest of lesser tubercle) A= Extension, adduction, internal rotation N= Lower subscapular nerve (C5-6) |
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Triceps Brachii |
O= Long head: infraglenoid tubercle of scapula Lateral head: posterior surface of proximal half of humeral shaft Medial head: post. surface of distal half of humeral shaft I= Olecranon process (posterior part) A= Extension of forearm ... N= Radial nerve (C7-8) |
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Anconeus |
O= Lateral humeral epicondyle (posterior part) I= Olecranon process (lateral surface) + posterior surface of ulna A= Extension of forearm (assists triceps) N= Radial nerve (C7-8) |
