On the anterior aspect of the arm, 2 cun below the anterior axillary fold, between the two heads of the biceps brachii muscle.
🧭 How to find it (practical)
With the arm extended and the palmar surface facing up, locate the point 2 cun below the anterior end of the axillary fold, in the biceps brachii muscle, or 7 cun above the cubital fold.
🔬 Anatomy
Biceps brachii muscle, coracobrachialis muscle. Innervated by the musculocutaneous nerve. The brachial artery and vein lie medially.
💉 Needling
Oblique insertion distally or proximally along the channel line, 1 to 1.5 cun.
📜 Etymology
Tian (天), heaven; Quan (泉), spring. The Qi of the meridian originates at Tian Chi (PC-1), flowing downward like a spring of water from the sky.
FIGURE 8.7 – Tian Chi point
