The Shaoyin meridian can be divided into the hand Shaoyin meridian and the foot Shaoyin meridian, the hand Shaoyin meridian belongs to the heart and the foot Shaoyin meridian belongs to the kidney.
The Hand Shaoyin Heart Meridian starts from the heart and goes out of the heart system, traveling down through the diaphragm and connecting to the small intestine. Its branch meridians go up from the heart system, clip the esophagus and connect to the eye system. Its direct meridians go up from the heart system to the lungs, then outward and downward to the armpits, along the medial posterior margin of the upper arms to the elbow sockets, then along the medial posterior margin of the forearms to the back of the palmar pea-bone, into the inner palm, and end at the radial end of the little finger.
The Foot Shaoyin Kidney meridian starts under the small toes of the foot, passes obliquely through the center of the foot, under the rough rump of the navicular bone, through the back of the inner ankle, down to the middle of the heel, and up along the inner side of the leg, through the spine, belonging to the Kidneys and the Urinary Bladder. Its direct branch, from the Kidneys, passes upward through the Liver and the diaphragm, enters the Lungs, runs along the throat, and is clamped next to the root of the tongue; another branch, branching off from the Lungs, contacts the Heart, and flows into the Chest.