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Supply Distribution of the Brachial Plexus

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Supply Distribution of the Brachial Plexus This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. SUPPLY DISTRIBUTION OF THE BRACHIAL PLEXUS Lateral pectoral nerve Pectoralis major Lateral cord Anterior compartment of the arm: MUSCULOCUTANEOUS NERVE Biceps, coracobrachialis, brachialis Skin over the lateral forearm, once it becomes cutaneous in the cubital fossa Anterior compartment of the forearm: EXCEPT for the ulnar part of flexor digitorum profundis MEDIAN NERVE Thenar muscles: EXCEPT adductor pollicis and the deep part of flexor pollicis brevis First and second lumbricals Skin on the medial surface of arm up to the elbow MedialLateral cutaneous cord: nerve of arm lateral pectoral nerve Medial cord Skin on the medial surface of forearm up to the elbow Medial cutaneous MUSCULOCUTANEOUS nerve of forearm NERVE lateral root of MEDIAN NERVE Medial pectoral nerve Pectoralis minor and sternocostal part of pectoralis major o Medial cord forms ULNAR NERVE Intrinsic muscles of the hand, EXCEPT 1st and 2nd lumbricals and three of the thenar muscles Flexor carpi ulnaris Ulnar half of the flexor digitorum profundis to the pinky and ring fingers Upper subscapular nerve Superior half of subscapularis medial root of MEDIAN NERVE Lower subscapular nerve Inferior half of subscapularis AND teres major medial pectoral nerve medial cutaneous nerveGlenohumeral of arm joint Teres minor medial cutaneous nerve of forearm Posterior cord AXILLARY NERVE Deltoid ULNAR NERVE Skin over the deltoid RADIAL NERVE ALL MUSCLES IN THE POSTERIOR COMPARTMENT OF THE ARM AND FOREARM Ski over posterior and inferolateral forearm Some of the dorsum of the hand o o Thoracodorsal nerve Latissimus Dorsi o o Posterior cord forms: Long Thoracic nerve Serratus anterior Dorsal scapular nerve Rhomboids; Supraclavicular branches levator scapulae Subclavius and Nerve to subclavius sternoclavicular joint Suprascapular nerve Supraspinatus Infraspinatus Glenohumeral joint.
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