Course
This channel starts from the heart, comes out of the cardiac system (the large vessels connecting with other visoera and descends through the diaphragm to connect with the small intestine.
The branch of the channel sprouts from the cardiac system, runs upwards along the side of the throat,and joins the ocular connectors (the structures connecting the eyeball with the brain, including blood vessels and optic nerves).
The original channel ascends to the axilla. And then it travels along the posterior border of the medial aspect of the upper arm, passes behind the Lung Channel of Hand-Taiyin and the Pericardium Channel of Hand-Jueyin. Goes downwards and reaches the cubital fossa. It continues to run along the posterior border of the little finger reaches the tip (Point Shaochon, HT9), and finally connects with the Small Intestine Channel of Hand-Taiyane.

Shaohai(HT3)
Location: With the elbow flexed, at the midpoint of the line connecting the medial end of the cubltal crease and the medial epicondyle of the humerus.
Indications: Precordial pain, contracion and numbness of the upper limb, tremor of the hand, scrofula, pain in the axillary and hypochondriac region.
Method: Puncture perpendicularly 0.5-1.0 inch. Moxibustion is applicable.
Regional anatomy
Vasculature: The basilic vein, the inferior ulnar collateral artery, the ulnar recurrent artery and vein.
Innervation: The medial antebrachial cutaneous nerve.

The lung Meridian picture of Shaohai(HT3) Acupoint	Body surface picture of Shaohai(HT3) Acupoint
Anatomy picture of Shaohai(HT3) Acupoint	Section picture of Shaohai(HT3) Acupoint