Course
This channel originates in the uterus, and makes its downward way through the perineum, across the pubisure part, along the midline of the abdomen and the chest, through the throat to the mandible where it turns round the lips and up to Yinjiao(DU28). Via the face, two branches of the channel ascend to the regions below the orbits of the eyes.

Xuanji(CV21)
Location: On the chest and on the anterior midline, 1 cun below Tiantu(RN22).
Indications: Chest pain, cough with dyspnea.

The lung Meridian picture of Xuanji(CV21) Acupoint	Body surface picture of Xuanji(CV21) Acupoint
Anatomy picture of Xuanji(CV21) Acupoint	Section picture of Xuanji(CV21) Acupoint