Muscles 16-20

Muscles 16-20 - Musculocutaneous nerve Triceps Brachii •...

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Muscles 16-20
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Coracobrachialis Origin: Corocoid process Insertion: Middle third of medial humerus Action: Weak adductor, humeral stabilization Innervation : Musculocutaneous nerve
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Biceps Brachii Origin: LH – supraglenoid tubercle SH – corocoid process Insertion: Radial tuberosity Action: Forearm flexor and supinator; weak shoulder flexor Innervation : Musculocutaneous nerve
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Brachialis Origin: Anterior lower half of humerus Insertion: Coronoid process of ulna Action: Flexes forearm Innervation
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Unformatted text preview: : Musculocutaneous nerve Triceps Brachii • Origin: LoH – infraglenoid tubercle LaH – Prox. post. surface of humerus MH – Post. surface of distal humerus • Insertion: Olecranon process of ulna • Action: Extends forearm • Innervation : Radial nerve Pronator Teres • Origin: Humeral head – medial epicondyle • Ulnar head – coronoid process • Insertion: Middle of lateral surface of radius • Action: Forearm pronation • Innervation : Median nerve...
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Muscles 16-20 - Musculocutaneous nerve Triceps Brachii •...

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