The posterior auricular vein is a superficial vein that contributes to venous drainage of the scalp. It plays a role in the formation of the external jugular vein. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Course The posterior auricular vein arises over the mastoid process of the temporal bone from the parieto-occipital network of scalp veins. It descends behind the auricle, running superficial to the sternocleidomastoid muscle. It typically joins the posterior division of the retromandibular vein, and together they converge to form the external jugular vein. Occasionally, it may drain directly into the external jugular vein. By TeachMeSeries Ltd (2025) Fig 1The posterior auricular vein and tributaries Drainage The posterior auricular vein drains the external ear and posterior scalp – particularly the region posterior and superior to the ear. Rate This Article