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GV-18 Unyielding Space
强间 〔強間〕 qiáng jiān
Alternate names: 大羽 dà yǔ, Great Feather
Channel: GV, governing (dū) vessel
Modern location: An acupoint located on the posterior aspect of the head, 1.5 cùn above the superior border of the external occipital protuberance (eop) on the midline.
Classical location: One cùn and five fēn directly above Brain’s Door (GV-17). From
Local anatomy: See GV-17.
Action: Calms the liver and extinguishes wind; soothes the sinews and quickens the network vessel.
Modern indications: Headache; dizzy vision; stiff nape; mania and withdrawal.
Classical indications: Vomiting of foamy drool; epilepsy; tugging and slackening; pain and stiff nape; insomnia.
Needle stimulus: Needling: 0.2‒0.3 cùn backward transverse insertion. Moxa: 3‒5 cones; pole 5‒15 min.
Point name meaning:
The character 间 (jiān) refers to the point’s location in a depression (space) between the occipital bone and the parietal bone, while 强 (qiáng) may refer to either the hard, unyielding bone of the skull or the point’s use in the treatment of stiff neck. Thus the name is rendered as Unyielding Space.
If 强 (qiáng) is taken as a reference to the point’s ability to strengthen the brain (treating epilepsy, headache, madness, and visual dizziness), then the name could be rendered as Strengthening Space.
The 强 (qiáng) derives its meaning of strength
from its radical 弓 (gōng), which represents the archer’s bow. When joined by a line,