Cardiovascular System
Posterolateral Medullary Vein (Left)
Vena medullaris posterolateralis
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The posterolateral medullary vein runs posteriorly and laterally around the medulla oblongata. Draining the medulla oblongata the posterolateral medullary vein empties into either the adjacent dural venous sinuses, inferior petrosal sinus or the superior bulb of the jugular vein.
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Vein
A venous sinus is a vein with a thin wall of endothelium that is devoid of smooth muscle to regulate its diameter.
