To the extreme. The back is Yang; "seven" is the number of Yang, and the cave is located on the upper seventh vertebra, which is Zhiyang (GV9) in Yang. In addition, the spinous processes of the sixth and seventh thoracic vertebrae are the most prominent points of the thoracic curve of the spine.

[Location]

Zhiyang (GV9) acupoint
(quoted from "Meridians and Acupoints")

• Zhenjiu Jiayi Jing: "Between the lower part of the seventh vertebra." It can also be located at the spinous process bulge,
• Leijing Tuyi : "When taking the points of the governor vessel (GV) between the spines, they should be taken at the protrusion of the joint."

[Anatomy]

• Muscles: lumbar tendon membrane, supraspinal ligament, interspinous ligament.
• Nerve: medial branch of the posterior branch of the seventh thoracic nerve. Within the spinal canal is the spinal cord.
• Vessels: posterior branch of the seventh intercostal artery, interspinous subcutaneous venous plexus.

[Manipulation]

Oblique insertion is 0.5 to 1 cun, do not insert deeply, or insert the needle at the height of the spinous process, and subcutaneous insertion is 1 to 2 cun downward. moxa cone moxibustion 3 to 5 times, moxa stick warm moxibustion for 15 to 20 minutes.

[Efficacy]

tonifying qi, releasing heat, benefiting the chest and diaphragm, clearing the liver and gallbladder.

• Classical: Hanre Laziness, sore throat, severe pain in limbs, shortness of breath, jaundice, epigastralgia, stomach cold in the middle, not eating, full chest and ribs , chest and back pain.
• Modern: angina, arrhythmia, hepatitis, Dannang (EX-LE6) inflammation, biliary ascariasis, epigastralgia, abdominal pain, malaria, thoracic membrane inflammation, intercostal neuralgia, psoriasis.

[Recipe]

• Biliary ascariasis: Zhiyang (GV9) penetrates Danshu (BL19).
• Viral hepatitis: Zhiyang (GV9), Ganshu (BL18), Pishu (BL20), Zusanli (ST36) , Yanglingquan (GB34).
• Arrhythmia: Zhiyang (GV9), Xinshu (BL15), Neiguan (PC6).