Intersecting point: foot shaoyangand yang link vessel.

bubble_chart Etymology

"Cheng" (承), to receive or bear; "Ling" (靈), refers to spirit or divine essence, indicating head is the seat of spiritual energy. The acupoint is located just above the lateral edge of parietal bone (known as "Tianling" (天靈) bone) at the top of head.

bubble_chart Location

Chengling (GB18) acupoint
(adapted from "Meridians and Acupoints")

On the head, 5 cun posterior to the anterior hairline, 2.25 cun lateral to the midline of the head, on the line connecting Toulinqi (GB15) and Fengchi (GB20).

• Zhenjiu Jiayi Jing: "1.5 cun posterior to Zhengying (GB17)";
• Zhenjiu Wendui: "Toulinqi is located directly above eye, 0.5 cun within hairline; Muchuang (GB16) and Zhengying (GB17) are each 1 cun apart, and Chengling (GB18) is 1.5 cun posterior to Zhengying (GB17)." This places it 4 cun posterior to anterior hairline;
• Zhenjiu Dacheng: "Locates the point 5 cun posterior to anterior hairline";
• Zhenjiu Jicheng: "1.5 cun posterior to Qubin (GB7), slightly higher", indicating that Chengngling (GB18) is above Jiaosun (TE20) and aligns horizontally with Jiaosun (TE20), Shuaigu (GB8), and Baihui (GV20).

bubble_chart Anatomy

• Muscle: epicranial aponeurosis.
• Nerve: branches of greater occipital nerve.
• Vessels: branches of occipital artery and vein.

bubble_chart Manipulation

Insert subcutaneously backward 0.5~1 cun. Moxibustion is not applied.

bubble_chart Efficacy

Dispel wind, open orifices.

• Classical: headache due to wind attacking brain, aversion to wind and cold, epistaxis, nasal congestion.
• Modern: rhinitis

bubble_chart Combinations

• Epistaxis and difficulty breathing: Chengling (GB18), Fengchi (GB20), Fengmen (BL12), Houxi, Houxi (SI3).
• Pain at Top of Head: Baihui (GV20), Chengling (GB18), Taichong (LR3).