Acupuncture Points Notebook

Location Guides:

: Xuanji : Jade Pivot

Ren-21 : Extraordinary Conception Vessel 21

Master Tung's Metal Five

On the midline of the manubrium of the sternum, midway between Huagai Ren-20 and Tiantu Ren-22.

Transverse insertion directed inferiorly 0.5 - 1 cun

TCM Actions:
Descends stomach qi and dispels food accumulation
Unbinds the chest and descends lung qi
Benefits the throat

TCM Indications:
  • Accumulation in the Stomach, difficult ingestion.
  • Pain and fullness of the chest and lateral costal region, cough, rebellious qi, wheezing, dyspnoea with inability to speak.
  • Rattling sound in the throat, throat painful obstruction.

    Superficial Innervation: Anterior cutaneous thoracic nerve from T2
    Dermatome Segment: T2

    In Tung's acupuncture this point is called Jin Yin and forms one of the Metal Five (Jin Wu), a series of five points that start at the upper border of the manubrium and descend at 1 cun intervals, approximately overlapping with Ren-18 to Ren-22. They are all indicated for difficultly breathing as well as their traditional indications for each point (McCann, 2014, Pricking the Vessels).

    In Mayan medicine:
    Combined with Tiantu Ren-22 for treatment of asthma (Garcia, Sierra, Balam, 1999: Wind in the Blood)

    Lad and Durve (2008) in Marma Points of Ayurveda call this point Jatru and associate it with Prana Vayu, Udana Vayu, Avalambaka Kapha, Sadhaka Pitta and Tarpaka Kapha.

    They give the following functions:
    - Maintains immunity and stimulates ojas
    - Stimulates dhatu agni and eliminates dhatu ama (toxicity)
    - regulates respiration
    - Benefits lungs and throat
    - Regulates thyroid and parathyroid functions
    - Enhances lymphatic circulation in the chest
    - Enhances communication
    - Benefits spleen
    - Releases suppressed emotions

    Reference Notes: (click to display)