在面部，耳屏正中前缘与下颌骨髁突后缘之间的凹陷中。

注：微张口，耳屏正中前缘凹陷中，在耳门(TE21)与听会(GB2)之间。

On the face, in the depression between the anterior border of the centre of the tragus and the posterior border of the condylar process of the mandible.

Note: When the mouth is slightly opened, SI19 is located in the depression anterior to the centre of the tragus, between TE21 and GB2.

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