Weizhong (BL40)
Popliteal crease — Bladder channel point, right representative
Weizhong is BL40 at the centre of the popliteal crease, represented on the right leg in the front-view projection. The popliteal fossa is a vascular and neural passage; it is mapped because the requested martial corpus names the knee hollow, not because a strike can be assumed to produce a fixed result.
Point 12 of 14 in Dim Mak — Dian Xue (点穴) vital-point striking
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Dianxue / shixue passages in classical quan pu (primary_canonical)
Ming–Qing dianxue/shixue quan pu, in heterogeneous point-striking passages concerning bl40 weizhong, preserves a martial vulnerability vocabulary and lineage claim; contested attribution means it is not a single canonical chart or a clinically validated effect.
P. Deadman, A Manual of Acupuncture (secondary)
Huangdi Neijing · Lingshu (primary_canonical)
Lingshu ch. 10 (Jing mai) gives the Bladder-channel popliteal course at Weizhong (BL40); the modern alphanumeric point identity and dianxue application are later nomenclatures, so this passage supports channel topography rather than a martial effect.