The foot has three foot Yin (Taiyin spleen, Shaoyin kidney and Jueyin liver) meridians and three foot Yang (Yangming stomach, Taiyang urinary bladder and Shaoy..ang gallbladder) meridians passing through and including their origin and terminal points. The five Shu (well, spring, stream, river and sea) acupoints are also located on the foot. They are used to treat diseases of the head, face, sense organs, internal organs and trunk, and to adjust the functions of the whole body.