Verscienta
PC7

Daling

Star

大陵 (Dàlíng) — Great Mound

Pericardium channel · point 7

Not yet clinically reviewed

Shu-Stream pointEarth pointYuan-Source pointEarth point of the Pericardium channelSedation (son) point

Traditionally used for

  • Teeth & mouth
  • Digestion
  • Urinary & fluids
  • Sleep
  • Mood & calm
  • Heart & circulation

Location

At the wrist, at the midpoint of the transverse crease, between the tendons of palmaris longus and flexor carpi radialis.

How to locate: With the palm up and the wrist slightly flexed, find the two central tendons (palmaris longus and flexor carpi radialis); the point is between them at the midpoint of the transverse wrist crease.

Regional anatomy: Beneath the skin, subcutaneous tissue and fascia the needle passes between the tendons of palmaris longus and flexor carpi radialis toward the wrist joint capsule; the median nerve lies directly beneath.

Distances are in cun, a proportional unit — how to measure.

Body map, front: PC7 · Wrist
Fig. — PC7 · Wrist After Albinus, 1747
Body map, front: PC7 · Wrist

PC7 · Wrist · Albinus, Tabulae sceleti et musculorum, 1747

Bones of the hand, dorsal — Gray's Anatomy plate
Bones of the hand, dorsal Gray's Anatomy, 1918
Bones of the hand, dorsal — Gray's Anatomy plate

Bones of the hand, dorsal · Gray's Anatomy, 1918

3D view

3D view not available for this point: its position on the 3D model couldn't be checked against its location text, so it is not shown. The 2D maps above show it.

Needling

Cited needling

Techniques — the source gives these as alternatives:

  1. Perpendicular insertion
    Depth 0.3–0.5 cun
    skindeeper
  2. Oblique insertion — distal, along the carpal tunnel for carpal tunnel syndrome
    Depth 0.5–1 cun
    skindeeper

Depths describe average adult habitus in the cited population, never a single safe number for the patient in front of you. Palpate and adjust.

Sources (1)
  1. Deadman P, Al-Khafaji M, Baker K. A Manual of Acupuncture. Hove: Journal of Chinese Medicine Publications; 1998 — p. 379 Supports: techniques (names this point)

Site notes · not cited

Depth: 0.3–0.5 cun
Angle: Perpendicular

Functions

  • Clears Heart fire and calms the spirit
  • Cools the blood
  • Clears Heart fire descending to the Bladder
  • Harmonises the Stomach and Intestines
  • Unbinds the chest
  • Activates the channel, benefits the wrist and relieves pain

Indications

Insomnia and severe anxietymania and manic laughterpalpitations and cardiac painstomach pain and vomitingmouth ulcers and bad breathcarpal tunnel syndrome and wrist painfeverish palms

Balance Method partners

Under Dr. Tan's six systems, PC7 at the wrist balances these channels at the regions its segment images.

  • 1. Same Chinese name
    Liver channel
    Ankle, Heel · Mirror (arm ↔ leg)
    Hip & groin, Buttock · Reversed mirror
    Front of neck, Nape of neck · Image, head at the hand/foot
    Lower abdomen, Sacrum · Image, head toward the elbow/knee
    Solve for the Liver channel →
  • 2. Branching (Bie Jing / Zang Fu Bie Tong)
    Stomach channel
    Ankle, Heel · Mirror (arm ↔ leg)
    Hip & groin, Buttock · Reversed mirror
    Front of neck, Nape of neck · Image, head at the hand/foot
    Lower abdomen, Sacrum · Image, head toward the elbow/knee
    Solve for the Stomach channel →
  • 3. Interior–exterior pair
    Triple Energiser channel
    Wrist · Same segment, opposite side
    Front of neck, Nape of neck · Image, head at the hand/foot
    Lower abdomen, Sacrum · Image, head toward the elbow/knee
    Solve for the Triple Energiser channel →
  • 4. Chinese clock opposite
    Stomach channel
    Ankle, Heel · Mirror (arm ↔ leg)
    Hip & groin, Buttock · Reversed mirror
    Front of neck, Nape of neck · Image, head at the hand/foot
    Lower abdomen, Sacrum · Image, head toward the elbow/knee
    Solve for the Stomach channel →
  • 5. Chinese clock neighbour
    Kidney channel
    Ankle, Heel · Mirror (arm ↔ leg)
    Hip & groin, Buttock · Reversed mirror
    Front of neck, Nape of neck · Image, head at the hand/foot
    Lower abdomen, Sacrum · Image, head toward the elbow/knee
    Solve for the Kidney channel →
  • 6. Same channel
    Pericardium channel
    Wrist · Same segment, opposite side
    Front of neck, Nape of neck · Image, head at the hand/foot
    Lower abdomen, Sacrum · Image, head toward the elbow/knee
    Solve for the Pericardium channel →

Classical calendar method · 子午流注

When the tables open PC7

The hours Zi Wu Liu Zhu names this point at, by method. Times are the double-hour's start in UTC.

  • 丁巳 09:00–11:00 Na Jia Fa, 丁-day sequence · Na (納) point

    「丁巳包絡大陵中」

    Next: Wed 21 Oct, 09:00

  • 丁卯 05:00–07:00 Na Jia Fa, 癸-day sequence · Yuan-Source (原), returning to the source

    「包絡大陵原並過」

    Next: Sat 17 Oct, 05:00

  • 戌 19:00–21:00 Na Zi Fa, PC channel · reduce (瀉)

    「瀉用戌時，大陵，為俞土」

    Next: Wed 14 Oct, 19:00

A classical reference, not a recommendation: the tables say when the method opens this point, not that it is the point to needle. Open points by the hour →

Clinical Notes

The Yuan-Source of the Pericardium and its sedation point — the stronger choice where the presentation is agitated excess rather than the anxious constraint PC6 addresses.

Combinations Using This Point

Neiguan, Shenmen and Daling

PC6, HT7 and PC7 at the inner wrist — for cardiac pain, palpitations, insomnia, irritability and low mood.

Sources

  • World Health Organization. WHO Standard Acupuncture Point Locations in the Western Pacific Region. Manila: WHO Regional Office for the Western Pacific, 2008. (Location.)
  • Focks C, ed. Atlas of Acupuncture. Edinburgh: Churchill Livingstone Elsevier, 2008. (Locating method and actions.)

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