Acupuncture Points Notebook

Location Guides:

: Yutang : Jade Hall

Ren-18 : Extraordinary Conception Vessel 18

Master Tung's Metal Five

On the midline of the sternum, level with the junction of the third intercoastal space and the sternum.

Transverse insertion directed superiorly or inferiorly along the channel 0.5 - 1 cun

TCM Actions:
Unbinds the chest
Regulates and descends qi

TCM Indications:
  • Pain of the chest and sternum, agitation with cough, uprising qi, fullness of the chest with difficulty in breathing, wheezing and dyspnoea, cold phlegm.
  • Vomiting, difficult ingestion.
  • Throat painful obstruction, swelling of the throat, swelling and pain of the breasts, pain of the lateral costal region.

    Superficial Innervation: Anterior cutaneous thoracic nerve from T4
    Dermatome Segment: T4

    Ling Shu Ch. 5 places this point as the end of Jueyin with Da dun Liv-1 as the root. A later comment connects it to Dan zhong Ren-17 which arguably makes more sense being connected to Jueyin as the front Mu point of the Pericardium. In cases of grief the whole channel is to be examined for surplus and deficiency and the pathology removed.

    Yuen (2005, The Eight Extraordinary Vessels) states that, according to the Ling Shu theory that the Leg Yin channels terminate and concentrate their Qi on the central axis of the body, this is also the Termination point of the Liver, to be used in instances of Liver Yin Stasis.

    In Tung's acupuncture this point is called Jin Jiao 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).

    Lad and Durve (2008) in Marma Points of Ayurveda call this point Hridayam and associate it with the doshas: Prana Vayu, Vyana Vayu, Udana Vayu Sadhaka Pitta, Pachaka Pitta and Avalambaka Kapha.

    They give the following functions:
    - Regulates cardiac function and heart rate
    - Improves coronary function
    - Maintains optimal function of lungs and airways
    - Benefits stomach, decreases activity
    - Calms mind, balances emotions, relieves stress
    The ayurvedic functions of this point on the heart more closely match Shanzhong Ren-17 located 1 cun inferior.

    In Tibetan medicine:
    Moxa point (AMNH, Tibetan Medical Paintings)

    Reference Notes: (click to display)