What point on the Kidney channel is classified as a jing-river point?

The point on the Kidney channel that is classified as a jing-river point is Kidney 7. Jing-river points are located on the Yang channels and are associated with the movement of qi and blood, particularly in relation to the lungs and the lungs' function of respiration. On the Yin channels, such as the Kidney channel, these points have significant roles in the regulation of fluids and in the treatment of conditions related to the organ's functions.

Kidney 7, positioned just below the K-6 point and near the medial aspect of the lower leg, is specifically known for its ability to tonify kidney yang and help with conditions such as edema and urinary issues. It influences the balance of water metabolism in the body, correlating with the Kidney's role in managing the body's resources and vitality.

While K-3 is known as the Yuan-source point and serves different therapeutic purposes—primarily related to nourishing kidney essence—K-6 is a confluent point that connects to the Yin Qiao vessel, and K-4 serves as a luo-connecting point that connects to the kidney's relationship with the bladder. Thus, Kidney 7's unique properties and its functional significance in diverse therapeutic contexts establish its classification as a jing-river point