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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;
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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