《灵枢·经脉》：小肠手太阳之脉，起于小指之端，循手外侧上腕，出踝中，直上循臂骨下廉，出肘内侧两骨之间，上循外后廉，出肩解，绕肩胛，交肩上，入缺盆，络心，循咽下膈，抵胃，属小肠。

    其支者：从缺盆循颈，上颊，至目锐眦，却入耳中。

    其支者：别颊上(出页)，抵鼻，至目内眦(斜络于颧)。

    The Chapter "Discussion on the Meridians" in Miraculous Pivot says: The Small Intestine Meridian starts from the ulnar side of the tip of the little finger. Following the ulnar side of the dorsum of the hand, it reaches the wrist. Then it goes out from the styloid process of the ulna, ascends along the posterior border of the lateral aspect of the forearm, passes between the olecranon of the ulna and the medial epicondyle of the humerus and runs along the posterior border of the lateral aspect of the upper arm to the shoulder joint. Circling around the scapular region, it meets the ruperior aspect of the shoulder, then turns downward to the supraclavicular fossa. It connects with the heart. From there, then it descends alon gthe exophagus, passes through the diaphragm, reaches the stomach and enters the small intestine, its pertaining organ. ......