Point Shu of the Lung; as this is a Yin meridian, it corresponds to Earth, the mother of Metal.
It is also the Yuan point, as well as the Hui point, meeting point of the vessels.
Location
Taiyuan is located at the outer end of the wrist flexion crease, on the inner edge of the tendon just below the thumb, where the pulse of the radial artery can be felt.
