What is the location of the yuan-source point of the hand shao-yang meridian?

The correct location of the yuan-source point of the hand shao-yang meridian is identified as being at the junction of the ulna and carpal bones, specifically in the depression lateral to the tendon of the extensor digitorum communis and extensor digitorum minimi. This point is important in Traditional Chinese Medicine (TCM) for its therapeutic effects.

In TCM, yuan-source points are significant in diagnosing and treating disharmonies related to their corresponding meridians. The hand shao-yang meridian, known as the San Jiao or Triple Warmer meridian, governs functions related to the body's metabolic processes and the distribution of qi. Therefore, knowing the exact anatomical location aids practitioners in effectively accessing this point for treatments aimed at balancing the energies related to this meridian.

The specified location emphasizes the anatomical relationships with adjacent structures, allowing for precise needling or acupressure. Understanding these associations helps practitioners to avoid complications and enhance treatment effectiveness.

The other choices present points associated with different anatomical features or incorrect locations that do not correspond to the yuan-source point of the hand shao-yang meridian, such as being too distal, proximal, or transversely associated with the incorrect tendons or