[Relationship between the distribution of spinal nerve posterior ramus and locations of acupoint in low back]
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Peng Li1, Jinsheng Liu1, Xiangnan Chen2
1Teaching and Research Office of Anatomy, Shantou University Medical College, Shantou 515041, Guangdong Province, China.
Objective:
To explore the relationship between the distributions of posterior ramus of spinal nerve (PRSN) and locations of acupoint in low back through anatomical observation.
Methods:
The regional anatomy was performed at five corpses to observe the distribution of erector spinae muscle and PRSN in areas of Jiaji points and back-shu points in low back.
Results:
The T12, L1, L2, L3 and L4 PRSN distributed on both sides of the spine; the medial branches of PRSN travelled between spinalis thoracis muscle and longissimus thoracis muscle, while the lateral branches of PRSN travelled between longissimus thoracis muscle and iliocostalis lumborum muscle.
Conclusions:
Jiaji points and back-shu points in low back are closely associated with PRSN, particularly T12, L1, L2, L3 and L4.
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