Its trend and contact law are as follows: (1) The Sanyin Meridian of the hand emanates from the chest and intersects with Sanyang Meridian at the fingertip; The three yang meridians of the hand start from the hand and cross the three yang meridians of the head and face; The foot Sanyang meridian begins at the beginning and intersects with Sanyin meridian at the toe. The foot three yin passes through the foot to the abdomen and intersects with the chest and abdomen three yin meridians.
The internal and external connection of the twelve meridians means that the three Yin San Yang of hands and feet are connected with each other through different meridians, forming six pairs of exterior-interior combination. Among them, foot sun and foot shaoyin are exterior and interior, foot shaoyang and foot jueyin are exterior and interior, foot Yangming and foot Taiyin are exterior and interior. Hand sun and hand shaoyin are on the exterior, hand shaoyang and hand jueyin are on the exterior, hand Yangming and hand Taiyin are on the exterior.
Extended data:
The twelve meridians's ownership:
The twelve meridians is connected with the viscera in the body, in which the Yin meridian belongs to the viscera, and the Yang meridian belongs to the viscera, with one dirty with one dirty and one yin with one yang, forming the collateral relationship of Yin and Yang. Namely, lung meridian of Taiyin hand, large intestine meridian of Yangming hand, pericardium meridian of Jueyin hand, triple energizer meridian of Shaoyang hand, heart meridian of Shaoyin hand and small intestine meridian of Taiyang hand.
Foot Taiyin Spleen Meridian is opposite to Foot Yangming Stomach Meridian, Foot Jueyin Liver Meridian is opposite to Foot Shaoyang Gallbladder Meridian, and Foot Shaoyin Kidney Meridian is opposite to Foot Taiyang Bladder Meridian. The internal and external meridians are closely related in physiology, affect each other in pathology and serve each other in treatment.
Baidu Encyclopedia-the twelve meridians
Baidu encyclopedia-three yin meridians of hand