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PC-4 Cleft Gate

郄门 〔郄門〕xī mén

Channel: PC, Hand Reverting Yīn (jué yīn) Pericardium Channel

Modern location: An acupoint located on the palmar aspect of the forearm, 5 cùn proximal to the wrist crease, between the tendons of the palmaris longus and the flexor carpi radialis muscles.

Classic location: Below Marsh at the Bend (PC-3), five cùn behind the wrist. (Yī Zōng Jīn Jiàn)

Local anatomy: The median artery and vein; deeper, the anterior interosseous artery and vein. The medial antebrachial cutaneous nerve; deeper, the median nerve; deepest, the anterior interosseous nerve.

Action: Quiets the heart and spirit; clears provisioning and cools the blood; loosens the chest and rectifies qì.

Modern indications: Heart pain; heart palpitation; vomiting of blood (blood ejection); coughing of blood; clove sores (dīng chuāng); epilepsy.

Classic indications: Vexation; pain in the chest; melancholy; insufficiency of spirit qì; fear and fright; fearfulness of people.

Needle stimulus: Needling: 0.5‒0.8 cùn perpendicular insertion. Moxa: 5‒7 cones; pole 5‒20 min.

Needle sensation: Distension and numbness, often spreading down to the fingers.

Point groups: Cleft point (xī xué) of the pericardium channel.

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