Jing-well (wood) point.

bubble_chart Etymology

"Zhong" (中), middle finger; "Chong" (衝), vital passage or important pathway. it is located at the tip of middle finger, serving as the jing-well point of hand jueyin pericardium meridian. It is often compared to Shaochong (HT9), the jing-well point of hand shaoyin heart meridian, located at the tip of little finger.

bubble_chart Location

Zhongchong (PC9) acupoint
(adapted from "Meridians and Acupoints")

• Lingshu-Benshu: "At the tip of middle finger",
• Zhenjiu Jiayi Jing added: "In the depression about one leek leaf width from nail";
• Taiping Shenghui Fang: "1 fen behind middle fingernail";
• Zhenjiu Daquan: "At the inner tip of middle finger";
• Yanhou Miji: "At the inner corner of middle fingernail". According to Zhenjiu Jiayi Jing and other texts, the point is located on radial side of middle finger, in the depression 1 fen behind radial corner of nail.

bubble_chart Anatomy

• Muscle: fibrous bundles.
• Nerve: branches of proper palmar digital nerve (from median nerve).
• Vessels: arterial and venous networks formed by proper palmar digital arteries and veins.

bubble_chart Manipulation

Shallow insertion of 1 fen (approximately 0.1 cun) or prick to bleed. Moxibustion with moxa stick for 10 to 15 minutes.

bubble_chart Efficacy

Clear heat, open orifice, benifit throat and tongue.

• Classical: fainting, febrile diseases, irritability and chest tightness, heart pain, stroke-induced unconsciousness, swollen and painful stiff tongue, heatstroke, infantile night crying, swollen and painful throat, splitting headache, feverish body

bubble_chart Combinations

• Swelling and pain under tongue: Lianquan (CV23), Zhongchong (PC9).
• Feverish body and splitting headache: Mingmen (GV4), Zhongchong (PC9).