L2 Yumnen ( P2 )

Location In the depression below the acromial extremity of the clavicle , 6 cun lateral to the Ren Meridian .

Indications Cough , asthma , pain in the chest , shoulder and arm , fullness in the chest .

Method Puncture obliquely - 0 . 5 - 0 . 8 inch towards the lateral aspect of the chest . To avoid injuring the lung , never puncture deeply towards the medial aspect . Moxibustion is applicable .

Vasculature The cephalic vein , the thoracoacromial artery and vein ; inferiorly , the axillary artery .

Innervation The intermediate and lateral supraclavicular nerve , the branches of the anterior thoracic nerve , and the lateral cord of the brachial plexus .