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 the doshas: 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)