[Location] Localized in the supine position, or in the erect sitting position and with the head held up, on the neck, 0.1 cun out from the point that at the upper one-third point on the line from adam's apple to Tiantu (RN22 ). ( Fig.91 )
 
[Regional Anatomy] Skin→subcutaneous tissue→between the left and right sternocleidomastoideus→above the incisura jugularis on manubrium of sternum→sternothyroid muscle of the left and right side→trachea's anterior diastema. Superficial layer, the distribution of medial supraclavicular nerves, and there is platysma muscle beneath the subcutaneous tissue.