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起于目内眦睛明穴，上额交巅百会，从巅入络脑，还出别下项，挟脊抵腰中，入循膂络肾属膀胱。腰部支脉贯臀下行至腘中；项部支脉循肩膊内，挟脊下行至髀枢，沿大腿后侧下合腘中，再下经小腿后侧、外踝后，沿足背至小趾外侧端至阴。属膀胱络肾，主一身之表，司气化而行水，背俞穴汇聚五脏六腑之气。全身经脉最长、穴位最多（67穴）。气血流注时辰为申时（15-17时）。要穴有委中（BL-40，合穴）、昆仑（BL-60）、至阴（BL-67）。
@misc{bencaodian-zu-tai-yang-pang-guang,
author = {{Bencaodian Editorial}},
title = {Zú Tài Yáng Páng Guāng Jīng 足太阳膀胱经 (Bladder Channel of Foot-Taiyang) — BL},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/meridians/zu-tai-yang-pang-guang},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0