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Brachial plexus and nerves of the upper limb
Prof. Abdulameer Al-Nuaimi E. mail:
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Dermatomes
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Brachial Plexus Behind the clav. Scal Ant Post triang U T M T L T
Rhomboids & levat Scap M U T M T L T Serratus ant. M. Scal post Latiss Dorsi M. Brachial Plexus
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Posterior triangle
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The cords are named according
To their arrangement around the Middle part of the axillary artery
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Of the forearm
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Cutaneous nerve of the forearm
Innervation of Musculocutaneous nerve Cutaneous nerve of the forearm
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Axillary Nerve It passes posteriorly round the surgical neck of the
Humerus with the post. Circumflex humeral artery
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Axillary nerve
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Cubital Fossa
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Cubital Fossa
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The Radial nerve Arise from the posterior cord of the brachial plexus, it arise from nerve roots C5, C6, C7, C8, T1
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Branches of radial nerve In the forearm it gives superficial sensory and deep motor branches. The deep branch winds around the neck of the radius between the superficial and deep layers of Supinator muscle to reach posterior of forearm. The superficial sensory branches are:
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Dermatomes of the hand
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Muscles of the forearm
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Ulnar nerve Then It passes anteriorly in the forearm
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Adductor pollicise muscle
Ulnar nerve Adductor pollicise muscle the d
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Median nerve It passes between the two heads of pronator teres m.
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Innervation and the skin on the dorsal surface of
Their distal phalanges
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Carpal tunnel syndrome
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Thank You
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