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Medical Definition of Truncus superior plexus brachialis
1. The nerve bundle formed by the union of the ventral rami of the fifth and sixth cervical nerves and some fibres from the fourth; it contributes fibres to the posterior and lateral cords (fasciculi) of the brachial plexus. Synonym: truncus superior plexus brachialis. (05 Mar 2000)
Lexicographical Neighbors of Truncus Superior Plexus Brachialis
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