京骨 : Jinggu : Capital Bone

Classifications:

Yuan-Source point

Location:

On the lateral side of the foot, in the depression anterior and inferor to the tuberosity of the fifth metatarsal bone.

Needling:

Perpendicular insertion 0.3 - 0.5 cun

Classical Needling:

"The Taiyang usually has much Blood and little Qi" (Su Wen 素問 ch. 24) implying this channel should normally be bled.
"The foot Taiyang is to be pierced 5 fen deep and remain inserted for seven exhalations" (Ling Shu 靈樞 ch. 12).
"It is needled to a depth of three 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:

Clears the head and eyes and eliminates Wind
Calms the Shen
Relaxes the sinews, activates the channel and alleviates pain

TCM Indications:

• Painful and heavy head with cold feet, splitting headache, heat in the head, shaking of the head, redness of the inner canthus, Superficial Visual Obstruction, Visual Dizziness, rhinitis with ceaseless nosebleed, chills and fever, Malarial (瘧, Nue) Disorders, no pleasure in eating.
  
• Palpitations, Heart pain, Mania-Withdrawal (癲狂, Dian Kuang), propensity to fright, epilepsy.
  
• Stiff neck, pain of the back and sides of the body, lumbar pain, aversion to cold and pain of the back, cracked and dry feet, cold damp Leg Qi (腳氣, Jiao Qi).

I Ching Hexagram:

䷄ Xu 需 Patience

Shared with Dazhong Kid-4 and balanced by ䷢ (Shenmen He-7 or Zhizheng SI-7).

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

Neuroanatomy:

Superficial Innervation: Sural nerve (L5 - S2)

Dermatome Segment: S1

Deeper Structures: Sural nerve (L5 - S2)

Martial Applications & Effects of Injury:

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

Major Combinations:

• Heart pain that feels like being struck with a bent and painful back, associated with the Kidneys:
    Jinggu Bl-64 with Kunlun Bl-60
    (Anon, 400BC-260AD: Huang Di Nei Jing Ling Shu, 黃帝內經靈樞, Yellow Emperor's Inner Classic: Spiritual Pivot Ch. 24, On Counterflow Diseases).
  
  
• Heat in the head and rhinitis with nosebleed:
    Jinggu Bl-64 with Kunlun Bl-60, Feiyang Bl-58, Chengshan Bl-57 and Yinbai Sp-1
    (Sun Simiao, 孫思邈, 625: Bei Ji Qian Jin Yao Fang, 備急千金要方, Essential Prescriptions Worth A Thousand Gold).
  
  
• Redness and erosion of the inner canthus:
    Jinggu Bl-64 with Shugu Bl-65
    (Wang Zhizhong, 王執中, 1220: Zhen Jiu Zi Sheng Jing, 針灸資生經, Classic of Supporting Life with Acupuncture and Moxibustion).
  
  
• Superficial Visual Obstruction:
    Jinggu Bl-64 with Qiangu SI-2
    (Sun Simiao, 孫思邈, 625: Bei Ji Qian Jin Yao Fang, 備急千金要方, Essential Prescriptions Worth A Thousand Gold).
  
  
• Cold of the lower extremities:
    Jinggu Bl-64 with Rangu Kid-2 and Shenshu Bl-23
    (Sun Simiao, 孫思邈, 625: Bei Ji Qian Jin Yao Fang, 備急千金要方, Essential Prescriptions Worth A Thousand Gold).
  
  
• Contraction of the legs:
    Jinggu Bl-64 with Chengjin Bl-56, Chengshan Bl-57 and Shanqiu Sp-5
    (Sun Simiao, 孫思邈, 625: Bei Ji Qian Jin Yao Fang, 備急千金要方, Essential Prescriptions Worth A Thousand Gold).
  
  
• Pain of the genitals:
    Jinggu Bl-64 with Shenshu Bl-23, Zhishi Bl-52 and Taichong Liv-3
    (Wang Zhizhong, 王執中, 1220: Zhen Jiu Zi Sheng Jing, 針灸資生經, Classic of Supporting Life with Acupuncture and Moxibustion).

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