Related Experiment Video
Updated: Jan 17, 2026
07:45
Quantifying Intermembrane Distances with Serial Image Dilations
Published on: September 28, 2018
6.7K
[Interpretation on the multiple connotations of twelve-meridian differentiation]
Huilin Zeng1, Bing Liu1, Ruixia Wang1
1Institute of Acupuncture and Moxibustion, Chinese Academy of Chinese Medical Sciences, Beijing 100700, China.
Zhongguo Zhen Jiu = Chinese Acupuncture & Moxibustion
|September 15, 2025
Summary
This study enhances Traditional Chinese Medicine (TCM) meridian differentiation by analyzing the twelve-meridian system. It refines diagnostic accuracy for meridian-based treatments by exploring theoretical foundations and clinical applications.
Area of Science:
- Traditional Chinese Medicine (TCM)
- Acupuncture and Meridian Theory
- Integrative Medicine
Background:
- Meridian-based syndrome/pattern differentiation is a core diagnostic method in TCM.
- Existing approaches to twelve-meridian differentiation require refinement for theoretical clarity and clinical utility.
- Understanding the physiological and pathological characteristics of meridians is crucial for accurate diagnosis.
Purpose of the Study:
- To systematically analyze and elaborate on the theoretical connotations and clinical applications of twelve-meridian based syndrome/pattern differentiation in TCM.
- To promote the completion and refinement of the meridian differentiation system.
- To improve the accuracy of meridian-based treatments.
Main Methods:
- Systematic analysis of traditional meridian-syndrome differentiation, focusing on illness location and symptoms.
- Analysis of existing problems and causes within meridian differentiation methods.
- Exploration of theoretical evidence from classical texts like Huangdi Neijing, considering neglected physiological/pathological characteristics (e.g., qi, blood, opening/closing/pivoting, time).
- Examination of category issues related to twelve-meridian and six-meridian differentiation.
Main Results:
- Identified theoretical and clinical gaps in current twelve-meridian differentiation practices.
- Provided a deeper understanding of meridian differentiation by referencing classical TCM literature and physiological concepts.
- Clarified the relationship between twelve-meridian and six-meridian differentiation systems.
- Proposed methods for meridian differentiation aligned with meridian distribution and symptom characteristics.
Conclusions:
- The study offers a comprehensive re-understanding of meridians and their differentiation.
- It significantly contributes to perfecting the meridian-collateral differentiation system in TCM.
- Enhancing the accuracy of meridian-based treatments is a key outcome, with potential for framework reconstruction.
Related Concept Videos
01:28Meridians
854
In surveying, meridians are vital reference lines to measure directions and establish accurate land orientations. Meridians run from the north to the south poles, providing a stable framework for angular measurements and mapping. Meridians are fundamental in survey design, with the primary types being astronomic, magnetic, and assumed meridians. Each type offers distinct benefits and limitations, selected based on the project's scale and precision needs.The astronomic meridian is aligned with...
854
01:19Magnetic Declination
395
Magnetic declination is the angle between true north, which aligns with the Earth's rotational axis, and magnetic north, which follows the direction of the Earth's magnetic field. This discrepancy exists because the magnetic poles do not coincide with the geographic poles. The value of magnetic declination depends on the observer's location on Earth and is subject to changes over time due to the dynamic nature of the Earth's magnetic field.The declination is called eastern when magnetic north...
395
01:19Azimuths and Bearings
598
Azimuths and bearings are essential concepts in surveying, providing methods to express the direction of a line relative to a meridian. Azimuths refer to the clockwise angle measured from the north end of a reference meridian to the given line, ranging from zero to 360 degrees. This method gives a comprehensive directional reference within a full 360-degree circle, making it a straightforward way to communicate direction in various fields, including navigation, cartography, and...
598
01:27Latitudes and Departures
596
Latitudes and departures are essential concepts in surveying, providing a systematic way to analyze the projections of traverse lines. These projections allow surveyors to interpret a line's north-south and east-west components, which are crucial for precisely calculating areas, bearings, and lengths. Latitude is the north-south projection of a line, calculated as the product of the line's length and the cosine of its bearing. Departure, conversely, is the east-west projection obtained by...
596
01:30Derivatives of Inverse Trigonometric Functions
45
A ship tracking an approaching aircraft relies on geometric measurements to find out the aircraft’s position relative to the observer. By measuring the slant distance to the aircraft and the angle of elevation, the horizontal and vertical components of the distance can be obtained using trigonometric relationships. This geometric approach provides a basis for analyzing how the observed angle changes as the aircraft moves closer to the ship.To examine the mathematical behavior of the angle...
45
01:29Coordinates and Map Projections
567
Coordinates and map projections are essential tools in accurately representing the Earth's surface for various applications, ranging from navigation to spatial analysis. The latitude and longitude coordinate system is a universally recognized framework for defining locations. Latitude specifies the distance of a point north or south of the equator, measured in degrees from 0° at the equator to 90° at the poles. Longitude indicates a location's position east or west of the prime meridian,...
567