: Qiuxu : Mound of Ruins / Wasteland

GB-40 : Foot Shaoyang Gall Bladder 40

Location Guides:

Classifications:

Yuan-Source point
Binding point of the foot Taiyang and foot Shaoyang Sinews

Trigger point (Travell & Simons, 1998, Trigger Point Manual; Melzack, Stillwell & Fox, 1977)


Location:

At the ankle joint in the depression anterior and inferior to the lateral malleolus


Needling:

Perpendicular insertion 1 - 1.5 cun, directed towards Zhaohai Kid-6.


Classical Needling:

"The Shaoyang usually has little Blood and much Qi" (Su Wen 素問 ch. 24) implying this channel should normally be needled.
"The foot Shaoyang is to be pierced 4 fen deep and remain inserted for five exhalations" (Ling Shu 靈樞 ch. 12).
"It is needled to a depth of five fen, (the needle) is retained for a duration of seven exhalations, and it is moxaed with three cones" (Huangfu Mi 皇甫謐, 3rd Century, Zhenjiu Jiayi Jing 針灸甲乙經).


TCM Actions:

Spreads Liver Qi and clears Gallbladder Heat and Damp-heat
Activates the channel, alleviates pain and benefits the joints
Regulates shaoyang

TCM Indications:


I Ching Hexagram:

Da Zhuang Great Power

Shared with Ligou Liv-5. Balanced by (Daling Pc-7 or Waiguan SJ-5).
Also shares a Rising and Falling Hexagram with Lingtai Du-10 or Shendao Du-11, balanced by Zhongwan Ren-12.

Hexagram attributions are my own with an explanation given in the glossary.


Neuroanatomy:

Superficial Innervation: Superficial fibular (peroneal) nerve (L4 - S1)

Dermatome Segment: L5, S1

Deeper Structures: Superficial fibular (peroneal) nerve (L4 - S1)


Trigger Point Associations:

Muscle:
Extensor digitorum brevis

Myotome Innervation:
Deep fibular (peroneal) nerve (L4 - S3)

Pain Referral Pattern:
Directly around the point

Indications:
Foot strain


Martial Applications & Effects of Injury:

See Montaigue, Dim Mak Locations, Taijiworld.com for explanation of effects.


Major Combinations:



Notes:

Common ashi point in cases of anterior talofibular ligament sprain.



In reflexology the band across the ankle, including this point, relates to the lymph and groin.



In Mayan medicine:
Used to treat pain in the lower limbs (Garcia, Sierra, Balam, 1999: Wind in the Blood)



Medieval phlebotomy point (John de Foxton, 1408: Liber Cosmographiae, maa.cam.ac.uk)



In ayurvedic medicine:
Kurchashira marma point
Size: 1 angula (cun)
Structure: Tendon
Effect of Injury: Pain (riijakar marma)
(Harish Johari, 1996, Ayurvedic Massage, Sanatan Society; Anupama Bhattacharya, n.d. Marma Shastra)



In Tibetan medicine:
Moxa point (AMNH, Tibetan Medical Paintings)



In Thai massage:
Acupressure point (Salguero & Roylance, 2011, Encyclopedia of Thai Massage)



Reference Notes:

Basic information on location, needle depth, TCM actions, indications and combinations is taken from Deadman et al (2001): A Manual of Acupuncture with additional anatomical information researched by reference to Gray's Anatomy (38th Ed., 1995) unless otherwise referenced. Images were found on acupunctureschoolonline.com and can be traced back to Claudia Focks (2008) Atlas of Acupuncture originally. I cannot claim any credit or rights over them. Other sources should be quoted in the text.

For some of the more unusual terms I have created a glossary here