Anatomical left wrist — cun (Heart) — deep
Distal wrist position · chén palpation
This point represents the deep palpation level of the anatomical left cun, the distal wrist position associated with the Heart in the selected Mai Jing convention. Its front-view coordinate is a schematic projection of the wrist station, and the slight lateral offset keeps this depth visible beside the superficial and middle levels.
Point 12 of 18 in Wrist Pulse Positions (cùn, guān, chǐ)
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Wang Shuhe, Mai Jing (Pulse Classic) (primary_canonical)
Mai Jing, juan 1, the cun-mouth pulse-position discussion (寸口脈), assigns the left cun station to the Heart in the selected convention. Superficial, middle, and deep are palpation depths at this same wrist station, not separate anatomical loci.
Nigel Wiseman and Feng Ye, A Practical Dictionary of Chinese Medicine (secondary)