Summary of the entire upper limb incl: nerves, ...
Medical Science-Summary of the entire upper limb incl: nerves, muscles (arm & shoulder), joints, landmarks & the hand
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UPPER LIMB
Nerves:
Brachial plexus (C5 T1): o Parts of the plexus from proximal to distal Roots In the inferior part of the neck, the roots unite to form three trunks Trunks Superior, Middle & inferior Each trunk then split into an anterior and posterior part to form the anterior and posterior divisions Divisions Anterior division ~ supplies anterior muscles Posterior division ~ supplies posterior muscles Within axilla, divisions combine to produce cords Cords Lateral, posterior & medial At pectoral border the cords divide into two terminal branches: Lateral musculocutaneous & lat. root of median nerve Medial Ulnar nerve & med. root of median nerve Posterior Axillary & radial nerve Lateral Cord: o Musculocutaneous nerve: Innervates the anterior compartment of the arm Median Cord: o Ulnar nerve: Innervates the anterior compartment of the forearm Flexor carpi u...
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