Courtyard, square in front of the palace. The cave is located in the center and under Tanzhong (CV17) (pericardial alarm point), which corresponds to the heart, just like the courtyard in front of the palace. It is located above the xiphoid process of the sternum, so it is also called the "dragon jaw".

[Location]

Zhongting (CV16) acupoint
(quoted from "Meridians and Acupoints")

• Zhenjiu Jiayi Jing: "In the next six-point trap of Tanzhong (CV17)";
• Taiping Shenghui Fang means "next inch";
• Yixue Rumen: "Jiuwei (CV15) goes up one inch."

[Anatomy]

• Muscles: Superficial muscles have a thin membrane and almost no fat.
• Nerve: medial branch of the anterior cutaneous branch of the fifth intercostal nerve.
• Blood vessels: anterior perforators of arteries and veins within the thoracic cage (breast).

[Manipulation]

Subcutaneous insertion 0.3~0.5 inches, moxa cone moxibustion 3~5 inches, moxa stick warm moxibustion for 15~20 minutes.

[Efficacy]

Broad chest, lower inverse position.

• Classical: fullness of the chest and hypochondrium, fluid retention, inability to eat, vomiting, and throat congestion.
• Modern: Pharyngitis, esophagitis, costochondritis.

[Recipe]

• vomiting: Zhongting (CV16), Shufu (KI27), Yishe (BL49).
• The diaphragm is too cold to eat, and vomiting also occurs: Zhongting (CV16), Zhongfu (LU1).