[Location] Localized in the prone position or in the erect sitting position with the elbows resting  on a table, on occipitalia, 0.5 cun above Tianzhu ( BL10 ). (Fig.90)
 
[Regional Anatomy] Skin→subcutaneous tissue→trapezius musele→the medial aspect of musculus splenius capitis→complexus. Superficial layer, the distribution of the third rami posteriores nervorum cervicalium's medial branch, and subcutaneous vein; deep layer, greater occipital nerve.