Chongyang ST 42 : Nomenclature, Location, Function, Indication

Nomenclature:

Chong: important Yang: Yang of Yin-yang
The point is where the chongyang is located (arteria dorsalis pedis).

Point: ST-42
Chinese Name: 冲阳
Name: Chongyang
English Name/Meaning: Rushing Yang
Pinyin: chōng yáng
Han Geul 한글: chung yang 충양
Romaji: shō yō
Vietnamese: Xung dương

Location:

On the dorsum of the foot, in the depression formed by the junction of the 2nd and 3rd metatarsal bones and the cuneiform bones (second and third), 1.5 cun distal to ST41, on the line drawn between ST41 and ST43, at the point where the pulsation of the dorsalis pedis artery may be palpated.

Method:

Oblique or perpendicular insertion 0.3 to 0.5 cun.

Functions and Indications of chongyang:

• This points supports spleen qi and transforms damp.
• Clears stomach heat so used for nasal bleeding.
• Calms the spirit, so is used for psycho-emotional signs e.g. dream- disturbed sleep, mania.
• Mostly local swelling & pain of dorsum of foot, muscular atrophy and motor impairment.

Remark:

Yuan-source point, Exit point

Precaution:

Caution: care should be taken not to puncture the dorsalis pedis artery which lies beneath this point.