brachial plexus
DESCRIPTION
in 5 mininutes..TRANSCRIPT
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Learn the Brachial Plexusin Five Minutes or Less
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The brachial plexus contains the neural connections between the neck and brachial nerves.
This speedy method helps simplify understanding the diagram of the brachial plexus.
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Draw two headless arrows to the right.
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Add a headless arrow to the left.
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Add a “W “.
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Add an “X”.
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Add a “Y”. (Just a branch of the “Y” is added.)
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Label C5 to T1.
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Label the major branches:MC = musculocutaneous,M = median U = ulnarR = radial AX = auxiliary
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This diagram includes the main branches and main nerve roots with the proper connections.
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More complex diagramming of the brachial plexus includes the four “3s.”
Neurosurgeons, neurologists, and physiatrists will use this diagram system.
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The first “3” is the branches to C5, 6, and 7 which form LTN = long thoracic nerve.
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Next, each of the headless arrows has three nerves attached to it. To the top headless arrow, add its “3.”
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Label these “3”: DSN = dorsoscapular nerve; SS = suprascapular nerve;LP = lateral pectoral nerve.
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Add the “3” to the middle headless arrow.
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Label the second headless arrow “3”: SS = subscapularTD = thoracodorsal nerve.
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Add the final “3” on the bottom headless arrow.
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Label the last “3.” MP = medial pectoral,MBC = medial brachial cutaneous, and MABC = medial antebrachial cutaneous. Remember: the brachial cutaneous goes to the brachium or arm, and the MABC goes to the antebrachium or forearm. The nerve to the forearm starts distally.
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Label roots, trunks, divisions, cords, terminal branches.
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Radiologists, neurosurgeons and thoracic surgeons need to know the nerve to the subclavius (SUB).
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The complete brachial plexus diagram: