Yin Motility Vessel (Yīnqiāo Mài, 阴跷脉) is one of the eight extraordinary vessels in acupuncture and Traditional Chinese Medicine, Yin in polarity. This vessel governs the yin aspect of movement and posture, influencing the opening and closing of the eyes and the flexibility of the lower limbs.
| Chinese | 阴跷脉 |
| Pinyin | Yīnqiāo Mài |
| Group | extraordinary |
| Yin / Yang | Yin |
| Master point | KI6 |
| Coupled point | LU7 |
The Yin Motility Vessel originates from the heel, specifically below the medial malleolus at KI6. It ascends along the medial aspect of the leg and thigh, following the posterior border of the medial malleolus and the medial aspect of the tibia. It continues upwards to the anterior aspect of the trunk, passing through the chest and throat. It then ascends to the face, reaching the inner canthus of the eye, where it converges with the Yang Motility Vessel.
This vessel governs the yin aspect of movement and posture, influencing the opening and closing of the eyes and the flexibility of the lower limbs. It regulates the balance between rest and activity, ensuring smooth transitions and proper coordination. It also plays a role in nourishing the brain and marrow.
Disorders of the Yin Motility Vessel often manifest as motor imbalances, such as flaccidity or spasm of the medial leg muscles, and issues with eye movement like inability to open the eyes. Other symptoms can include lethargy, somnolence, and a feeling of heaviness in the body, reflecting its role in yin regulation.
The Yin Motility Vessel originates from the heel, specifically below the medial malleolus at KI6. It ascends along the medial aspect of the leg and thigh, following the posterior border of the medial malleolus and the medial aspect of the tibia. It continues upwards to the anterior aspect of the trunk, passing through the chest and throat. It then ascends to the face, reaching the inner canthus of the eye, where it converges with the Yang Motility Vessel.
This vessel governs the yin aspect of movement and posture, influencing the opening and closing of the eyes and the flexibility of the lower limbs. It regulates the balance between rest and activity, ensuring smooth transitions and proper coordination. It also plays a role in nourishing the brain and marrow.