Name:
77.01 Zheng Jin 正筋穴
Upright Tendon

Location:
On the tendon of calcaneum, 3.5 cun proximal to the bottom of the heel. 

Indication:
1. Neck pain. 2. Spinal pain. 3. Increased intracranial fluid pressure.

Needling:
0.5-0.8 cun

Tungs Anatomy:
Reaction area of spine and brain.