Jing-river (metal) point.

bubble_chart Etymology

"Jian" (間), gap; "shi" (使), pathway. Suwen‧Linglan Midian Lun states: "If the ruler is not clear, then the twelve officials will be in danger, the pathways will be blocked and impassable, and the body will suffer severe damage." Wang Bing commented: "The 'pathways' refers to which spirit and qi circulate through." The acupoint is located on palmar side of forearm, between two tendons, and belongs to hand jueyin pericardium meridian, which is connected to heart. Hence its name."

bubble_chart Location

Jianshi (PC5) acupoint
(adapted from "Meridians and Acupoints")

On palmar side of forearm, 3 cun above transverse crease of wrist, between tendons of palmaris longus and flexor carpi radialis, on the line connecting Quze (PC3) and Daling (PC7).

• Lingshu‧Benshu: "Between two tendons, in the middle of the 3 cun";
• Zhenjiu Jiayi Jing: "3 cun behind palm, in the depression between two tendons".

bubble_chart Anatomy

• Muscles: radial side, flexor carpi radialis tendon; ulnar side, palmaris longus tendon; superficial layer, flexor digitorum superficialis muscle; deep layer, flexor digitorum profundus muscle, pronator quadratus muscle, and the palmar surface of interosseous membrane of forearm.
• Nerve: dual distribution of medial and lateral cutaneous nerves of forearm, palmar cutaneous branch of median nerve; deep radial side, median nerve trunk; the deepest layer, interosseous palmar nerve of forearm.
• Vessels: median forearm vein; radial side, median artery; the deep layer, interosseous artery and vein on volar side of forearm.

bubble_chart Manipulation

Perpendicular insertion 0.5~1 cun. Avoid damaging the trunk of median nerve (especially during acupoint injection). Moxibustion with moxa cone 3 to 5 minutes; moxibustion with moxa stick for 10 to 15 minutes.

bubble_chart Efficacy

Tranquilize mind, calm spirit, soothe chest, cure malaria.

• Classical: heart pain, palpitation, chest Bi-syndrome, irritability, manic and depressive psychosis, vomiting, obstruction in throat, aphonia, malaria, irregular menstruation with blood clots, febrile diseases with restlessness, red face and yellow eyes, swollen armpits, arm pain with difficulty in flexion and extension, pain on inner side of elbow, elbow spasm, and heat in palm.
• Modern: rheumatic heart disease, angina pectoris, myocardial infarction, myocarditis, schizophrenia, simple goiter, breast lump.

bubble_chart Combinations

• Sudden chest and heart pain: Jianshi (PC5), Shenmen (HT7), Lieque (LU7), Dadun (LR1).
• Malaria: Fengchi (GB20), Jianshi (PC5), Huantiao (GB30).
• Sudden mania: Jianshi (PC5), Houxi (SI3), Hegu (LI4).
• Aphonia and hesitant speech: Jianshi (PC5), Hegu (LI4).
• Evil: Shuigou (GV26), Jianshi (PC5).
• Whispers: Tianding (LI17), Jianshi (PC5).