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10 Cards in this Set
- Front
- Back
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Deltoid
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Action: Flexes, medially rotates abducts extends, laterally rotates arm
Innervation: axillary nerve Origin: clavicle Insertion: Deltoid tuberosity |
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Teres Major
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Action: Adducts and medially rotates arm
Innervation: Lower subscapular nerve Origin: Inferior angle on the posterior side of scapula Insertion: Medial side of intertubercular groove |
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Teres Minor
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Action: laterally rotates arm
Innervation: axillary nerve Origin: middle part of lateral border of scapula on the posterior side Insertion: inferior facet of greater tubercle of humerus |
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Triceps Brachii
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Action: extends arm
Innervation: radial nerve Origin: upper part of lateral border of scapula (long head) Insertion: olecranon of ulna |
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Infraspinatus
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Action: laterally rotates arm
Innervation:suprascapular nerve Origin: infraspinous fossa of scapula Insertion: middle facet of greater tubercle of humerus |
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Supraspinatus
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Action: Initiates abduction of arm
Innervation: suprascapular nerve Origin: supraspinatus fossa of scapula Insertion: superior facet of greater tubercle of humerus |
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Latissimus Dorsi
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Action: extends, adducts, and medially rotates humerus
Innervation: thoracodorsal nerve Origin: spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, illiac crest, and inferior 3/4 ribs Insertion: intertubercular groove of humerus |
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Pectoralis Major
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Action: abducts and medially rotates humerus
Innervation: lateral and medial pectoral nerves Origin: Anterior surface of medial half of clavicle (clavicular head) Insertion: lateral lip of intertubercular groove of humerus |
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Pectoralis Minor
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Action: stabilizes scapula
Innervation: medial pectoral nerve Origin: ribs 3-5 Insertion:medial surface of caracoid process |
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Serratus Anterior
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Action: rotates scapula
Innervation: long thoracic nerve Origin: ribs 1-8 Insertion: anterior surface of medial border of scapula |
