( LU-4 Clasping the White XIABAI - Acupuncture Points ) On the medial aspect of the upper arm, 4 cun distal to the end of the anterior axillary fold, in the depression on the lateral border of sulcus bicipitalis lateralis.
How to find
Ask the patient to flex their biceps muscle against resistance.
Locate LU-4 4 cun below the anterior end of the axillary fold (➞ 2.2) in the depression on the lateral border of the sulcus bicipitalis muscle. Sometimes you can feel the pulse of the brachial artery here. Or quick method: Spreading hands technique (➞ 2.3.3): place the little fingers on the axillary fold and the cubital crease (at ➞ LU-5) respectively (this distance corresponds to 9 proportional cun ➞2.2) and determine the midpoint of this distance by joining the thumbs. Locate LU-4 0.5 proximal to the midpoint in the sulcus on the lateral border of the biceps muscle. ➞LU-3 is also located in the sulcus, 1 cun proximal to LU-4.
Vertically 0.5–1 cun
● Regulates and moves Qi and Blood in the chest
● Descends the Lung Qi
● Opens the channel and alleviates pain
Category: Acupuncture Points
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