medial cutaneous branch of dorsal branch of posterior intercostal arteries
Definition: branch of the initial posteriorly directed branches of the third through eleventh intercostal arteries that runs toward the midline to supply the skin overlying the deep back muscles.
Synonym(s): ramus cutaneus medialis rami dorsalis arteriarum intercostalium posteriorum III–XITA
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Examples: glitazone, GI cocktail, etc.