Jejunum
The jejunum lies between the duodenum and the ileum and is considered to start at the suspensory muscle of the duodenum, a location called the duodenojejunal flexure. The division between the jejunum and ileum is not anatomically distinct due to the fact that in adult humans, the small intestine is usually 6-7m long, about two-fifths of which (2.5 m) is the jejunum.
Small intestine (Chinese medicine)
SI Meridian Points (S1-S10):
SI-1 (Shao Ze/Lesser Marsh) : Resuscitates, promotes lactation, opens orifices, clears Heat. 
SI-2 (Qian Gu/Front Valley): Clears Heat, activates the meridian.
SI-3 (Hou Xi/Back Stream): Benefits the neck and back, treats malaria activates the meridian.
SI-4 (Wan Gu/Wrist Bone): Activates and clears the meridian, resolves Damp-Heat.
SI-5 (Yang Gu/Yang Valley): Clears Heat, clears the meridian, reduces swelling.
SI-6 (Yang Lao/Nourishing the Aged): Activates the meridian, benefits the eyes, benefits the shoulder and arm, alleviates pain. 
SI-7 (Zhi Zheng/Branch of the Upright): Activates the meridian, frees obstructions, calms the Shen, clears Heat, alleviates pain. 
SI-8 (Xiao Hai/Small Sea): Activates the meridian, alleviates pain, clears Heat and Damp-Heat.
SI-9 (Jian Zhen/True Shoulder): Activates the meridian, alleviates pain, benefits the shoulder. 
SI-10 (Nao Shu/Upper Arm Shu): Activates the meridian, alleviates pain, benefits the shoulder.https://theory.yinyanghouse.com/acupuncturepoints/smallintestine_meridian_graphic
http://www.sacredlotus.com/go/acupuncture/channel/small_intestine_channel_of_hand_tai_yang
http://www.acatcm.com/small-intestine-meridian-hand-tai-yin-points