The Lung meridian journey...
The lung meridian originates in the solar plexus region and moves downward to then meet with the large intestine. From there it moves past the stomach and diaphragm where it divides and enters the lungs. Once through the lungs, it comes back together and moves upward through the windpipe to the throat where it divides again.
This is where it moves more superficially to the front of the shoulder (LU-1). It moves
over the shoulder and down the front of the arm, down the biceps and into the tendon at the elbow crease (LU-5). From there it continues down the forearm to the wrist to the base of the thumb(LU-9). The channel crosses the height of the thumb muscle to finish at the corner of the thumbnail.