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LI 1 · Shangyang

Large Intestine meridian · Metal · Yang · peak 5–7 AM

Plate shown for male body
Hand acupoints

Location

Index finger, radial corner of nail base

Needling Depth

0.1 cun or prick

Shallow — low depth risk.

Always palpate landmarks and angle away from vital structures. Chest/neck: oblique, shallow only.

Point Category

Jing-Well

Trigger-Point Link

Sternocleidomastoid (SCM) — referred to Face, forehead, around the eye, and sometimes deep into the ear; can cause dizziness.

Deltoid (anterior) — referred to Localized to the front shoulder and outer arm.

Scalenes — referred to Down the outer arm and into the hand; can mimic thoracic outlet.

Extensor Digitorum — referred to Back of the hand and fingers; 'tennis elbow' referral.

Large Intestine Meridian Flow

Metal · Yang · peak 5–7 AM

Qi flowing along the Large Intestine — direction of animation reflects channel flow.

My notes on LI 1