Muscles 6-10

Muscles 6-10 - and stabilizes clavicle • Innervation C5...

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Muscles 6-10
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Pectoralis Major Origin: Clavicular part-medial half of clavicle Sternal part-lateral border of sternum Insertion: Bicipital groove of humerus Action: Adduct, medially rotate arm Innervation : medial and lateral pectoral nerves
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Pectoralis Minor Origin: 3 rd , 4 th , and 5 th ribs Insertion: corocoid process of scapula Action: draws scapula forward and downward Innervation : medial pectoral nerve
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Subclavius Origin: medial border of 1 st rib Insertion: under- surface of clavicle Action: depresses
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Unformatted text preview: and stabilizes clavicle • Innervation : C5, C6 Serratus Anterior • Origin: Outer surface of first eight ribs • Insertion: Anterior surface of the medial border of scapula • Action: protracts scapula • Innervation : long thoracic nerve Deltoideus • Origin: Ant.-lateral third of clavicle • Mid-acromion process • Post-spine of scapula • Insertion: deltoid tuberosity • Action: Ant-flexes arm • Mid-abducts arm • Post-extends arm • Innervation : Axillary nerve...
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Muscles 6-10 - and stabilizes clavicle • Innervation C5...

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