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Related to deltopectoral groove: thoracoacromial artery, Clavipectoral triangle, Deltopectoral triangle, Pectoral fascia, infraclavicular fossa
A depression (palpable through the skin) at the boundary of the deltoid, pectoralis major, and biceps brachii muscles. The cephalic vein, running superficially up the arm, dives beneath the muscles through this groove to empty into the axillary vein.
See also: groove
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