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Related to Profunda brachii artery: nutrient artery of humerus, middle collateral artery
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The profunda brachii artery was given off from the trunk bifurcation distally, approached the radial nerve (nervus radialis), crossing the AA and BA dorsally, and together they entered the space between the heads of the triceps brachii.
It gives off the radial recurrent artery, which ascends proximally and anastomoses with the radial collateral branch of the profunda brachii artery.
At the level of the radial groove, the profunda brachii artery and its venae comitantes were seen to accompany the nerve.