Tiantu (CV22)
Sternal notch / throat — Conception Vessel point
Tiantu is CV22 at the suprasternal notch, the visible front landmark at the base of the throat. Dian xue descriptions place the anterior throat among high-consequence targets, but the point's deep structures and vulnerability make this a warning locus rather than a safe training target.
Point 3 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 cv22 tiantu, preserves a martial vulnerability vocabulary and lineage claim; contested attribution means it is not a single canonical chart or a clinically validated effect.
Huangdi Neijing · Lingshu (primary_canonical)
Lingshu ch. 10 (Jing mai) gives the Ren Mai neck course at Tiantu (CV22); the modern alphanumeric point identity and dianxue application are later nomenclatures, so this passage supports channel topography rather than a martial effect.
P. Deadman, A Manual of Acupuncture (secondary)