족태음비경 (SP)   >   SP18 천계 (天谿)
부위
앞가슴부위, 넷째 갈비사이공간(the 4th intercostal space), 앞정중선(anterior median line)에서 가쪽으로 6寸.

In the anterior thoracic region, in the 4th intercostal space, 6 B-cun lateral to the anterior median line.
Note: SP18, ST17, and KI23 are located along the curve of the 4th intercostal space.
침구법
- 直刺 0.2～0.3寸 (不宜深刺)
- 斜刺 0.3～0.5寸