: Zhishi : Residence of the Will

Bl-52 : Foot Taiyang Bladder 52

Alternative Name: Jinggong
Translations: Palace of Essence

Classifications:

Spirit point
One of the "59 piercings" for clearing Heat in Su Wen Ch. 61
Master Tung's Three Rivers
Master Tung's Double Rivers

Trigger point (Travell & Simons, 1998, Trigger Point Manual)


Location:

3 cun lateral to the midline, level with the lower border of the spinous process of the second lumbar vertebra (L2) and level with Shenshu Bl-23.


Needling:

Oblique insertion 0.5 - 1 cun


Warnings:

Deep perpendicular insertion carries a risk of injuring the kidney.


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).
"Locate it with (the patient) seated upright. It is needled to a depth of five fen and moxaed with three cones" (Huangfu Mi 皇甫謐, 3rd Century, Zhenjiu Jiayi Jing 針灸甲乙經).


TCM Actions:

Tonifies the Kidneys and benefits the essence
Regulates urination
Strengthens the lumbar region

TCM Indications:


Neuroanatomy:

Superficial Innervation: Dorsal rami of L1 - L3

Dermatome Segment: L2


Trigger Point Associations:

Muscle:
Superficial quadratus lumborum

Myotome Innervation:
Dorsal rami of spinal nerves from T12 - L4

Location Notes:
Travell & Simons (1998) diagram looks closer to L3 at the crest of the iliac spine

Pain Referral Pattern:
To lateral hip and below and anterior to iliac spine

Indications:
Low back pain


Martial Applications & Effects of Injury:

Listed in the Wu Bei Zhi 武備志 (Treatise on Armament Technology) by Mao Yuanyi 茅元儀 (1621), Article 9: Twelve-Hour (Shichen 時辰) Vital Points Revealed as the vital point associated with the You 酉 Cock (5 - 7 pm) and the Kidney meridian (McCarthy, 2016, Bubishi: The Classic Manual of Combat).

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


Major Combinations:



Notes:

Like the other outer Bladder points of the five Zang, despite being named after their spiritual aspect they have little indication for treatment of psychological disorders in the classical literature but are mainly used for draining heat from their corresponding Zang (Deadman et al, 2001). One possible answer to this is that the Shen is often agitated by excessive Heat making clearing Heat from the Zang a possible protocol for calming the mind.



Its alternative name Jinggong (Palace of Essence) reflects this points strengthening influence over sexual function (ibid).



In five element acupuncture indicated for a water cf, lack of willpower, sense of hopelessness, weakness from overwork.



Classical texts such as the Nei Jing and Ling Shu which considered the Dai mai as simple a circle around the waist would include this a point on the Dai mai along with others level to Shenque Ren-8 and Mingmen Du-4 instead of the traditional points (Yuen, 2005, The Eight Extraordinary Vessels).



The "59 piercings" are named in the Su Wen Ch. 61 and mentioned in Su Wen Ch. 32 and Ling Shu Ch. 23 for treating Heat diseases. This point along with Pohu Bl-42, Shentang Bl-44, Hunmen Bl-47 and Yishe Bl-49 clear Heat from the five Zang.

Ling Shu Ch. 22, On Mania and Madness, advises that if the disease is in the vessels causing sudden falling to the ground and the four extremities being swollen and relaxed then if full the Luo are pierced and if empty then this point is cauterised along with Tianzhu Bl-11 on both sides and at all Shu points located on partings in the flesh.



Jeffrey Yuen (2005, 3 Spirits & 7 Souls) suggests for inability to express fear we can direct the Yuan qi to here for expression by needling Shenshu Bl-23 outwards and then this point relatively perpendicularly.
For excessive fear we can direct it back to the Zang by needling this point obliquely towards the inner Bladder line and then needling Shenshu Bl-23 downards.



Master Tung's Three Rivers (San Jiang) are three lines of points, one along the midline below each spinous process from L1 to S2 with the another two either side 3 cun lateral to the midline from L2 to S2. They are pricked to bleed a spot of blood.
They relate to the water phase and Kidneys and are indicated for lumbar pain and conditions of the abdomen, bowels and uterus. Those 3 cun from the midline can also be used for sciatica and as distal points pain of arm, elbows or shoulders (McCann, 2014, Pricking the Vessels).

The Double Seas (Shuang He) are a set of 12 points bilaterally 3 cun lateral to the spine at the levels of L2 to S2. They are pricked in cases of pain in the upper extremities or pain and lack of strength in the upper back and shoulders (ibid.)

Tung's prick to bleed technique may make greater sense than regular needles here as shallow depth without retention may be safer over the kidneys and the larger gauge used may provide better stimulation to this relatively insensitive area.



One of the 18 tender spots used in the diagnosis of fibromyalgia (Wang, Acupuncture and Traditional Chinese Medical Approaches for Fibromyalgia, Acupuncture Today, vol.6 no.3, 2005).



In ayurvedic medicine:
Parshva sandhi marma point
Size: 1/2 angula (cun)
Structure: Blood vessels
Effect of Injury: Premature death (kalantarpranahar marma)
(Harish Johari, 1996, Ayurvedic Massage, Sanatan Society; Anupama Bhattacharya, n.d. Marma Shastra)



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