Encontro dos Três Canais Yang do BraçoIntestino GrossoIntestino Delgado)SafeMembro Superior
Depth
00.5–1.5 cun3.0
Oblique insertion
Precautions
No special precautions.
📍 Location (classical)
On the dorsal aspect of the forearm, 4 cun proximal to the dorsal carpal crease, between the radius and the ulna.
🧭 How to find it (practical)
With the arm extended and pronated, locate the point 4 cun immediately above the midpoint of the dorsal wrist crease, between the ulna and the radius.
🔬 Anatomy
Extensor digitorum communis and abductor pollicis longus muscles. Innervated by the posterior antebrachial cutaneous nerve and the posterior interosseous nerve.
💉 Needling
Vertical or oblique insertion up to 1.5 cun.
📜 Etymology
San Yang (三阳), three Yang meridians of the hand; Luo (絡), connection. This point connects the three Yang meridians of the hand.
