《黄帝内经·灵枢·经脉》
脾足太阴经脉，起于足大趾的内侧端，沿着大趾内侧赤白肉分界处，经过大趾后的核骨，上行于内踝的前方，再上行于小腿肚的内侧，沿胫骨后方，与厥阴肝经交叉出于其前，上行膝股内侧的前缘，直达腹内，入属脾脏，连络胃腑，上过膈膜，挟行咽喉，连于舌根，散于舌下。
脾足太阴之脉，起于大趾之端，循趾内侧白肉际，过核骨后，上内踝前廉，上踹内，循胫骨后，交出厥阴之前，上膝股内前廉，入腹，属脾，络胃，上膈，挟咽，连舌本，散舌下。
The Foot Spleen Taiyin Channel originates at the medial end of the big toe and follows the junction between the red and white flesh of the big toe's inner side, passing the heel bone on the back of the big toe, going upwards in front of the inner ankle, and then going up the inner side of the calf along the back of the tibia, where it crosses the Jueyin Liver Channel and proceeds in front of it, going upwards on the anteromedial edge of the knee and thigh, straight to the abdomen, connecting to the spleen, linking up with the stomach, going above the diaphragm, running alongside the pharynx, connecting to the root of the tongue, and dispersing under the tongue.