Encontro IG-ID-BexigaCruzamento ID-Bexiga-Yang WeiPonto regional do ombro e cotoveloSafeMembro Superior
Depth
00.5–1 cun3.0
Oblique insertion
Precautions
None standard
📍 Location (classical)
On the lateral aspect of the upper arm, on the line connecting LI-11 and LI-15, 7 cun proximal to LI-11 and slightly above the distal insertion of the deltoid muscle.
🧭 How to find it (practical)
With the elbow flexed, locate the point at the lower end of the deltoid muscle, on the line connecting Qu Chi (LI-11) and Jian Yu (LI-15).
🔬 Anatomy
Insertion of the deltoid muscle, brachialis muscle. Innervated by the posterior cutaneous nerve of the arm and the radial nerve.
💉 Needling
Vertical insertion 0.5–1 cun; also obliquely directed toward the shoulder for ocular disorders.
📜 Etymology
Bi (臂), upper limb; Nao (臑), upper arm. The point lies over the prominence of the upper arm muscle.
