\r手厥阴心包络经图\p06-d33a17.bmp\r
\r心胞络经之图\p06-d33a18.bmp\r
心包一藏，《难经》言其无形。滑伯仁曰∶心包，一名手心主∶以藏象校之，在心下横膜之上，竖膜之
下。其与横膜相粘，而黄脂裹者，心也。脂膜之外，有细筋膜如丝，与心肺相连者，心包也。此说为是，凡言无形者非。
胞络者，胞络其心也，即膻中也，为心之所以来，诸说不一，承讹已久，今考正之。
手厥阴心胞络 一名心主，即膻中也。膻中者，臣使之官，喜乐出焉。或问手厥阴一经，曰心主，曰心包络，
又曰膻中者，何也？盖心，君火也；包络，相火也。君火以名，相火以位，相火代君火行事。以用而言，故曰心主，以
经而言，则曰心包络。又臼膻中者，《灵兰秘典篇》云∶膻中者臣使之官，喜乐出焉。盖喜笑心火所司，喜乐之意，正与
心应也。独称臣使者，君主之亲臣也。由是推之，则包络即膻中也，膻中即心主也，总一经而各异其名耳。其形质在心
下横膜之上，竖膜之下，与横膜相连，而黄脂裹者，心也；其脂膜之外，细筋膜如丝，与心肺相连者，心包络也。然包
络非止于心联系而包之己也，其实一脂膜，罗膈相联，与脾之大络，腹内之脂膜，遍彻腔中，统系于脊，脏腑藉此以相
联。赃腑之气血，即藉此以相通。既系于脊，则脏腑与躯壳相联必藉此；脏腑之气血，与躯壳相灌，亦必藉此，则包络
实脏腑之总司也。有名有形，所谓无形者非也。其经多血而少气，与三焦为表里，戌时气血注此。
其见证也，笑不休，手心热，臂肘挛急，腋肿，甚则胸腋肢满，面赤烦心。
其经之脉，起于胸中，出属心下之包络，受足少阴肾经之交也。由是下膈，络于三焦之上脘、中脘；其支者，自属
心包，上循胸，出胁，下腋三寸天池穴，上行抵腋下，下循 内之天泉，以界乎手太阴、手少阳两经之中间，入肘中
之曲泽穴。又由肘中下臂，行臂两筋之间，循 门、间使、内关、大陵，入掌中劳宫，循中指出其端之中冲；其支别
者，从掌中，循无名指出其端，而交于手少阳三焦经，自关冲、液门而上行也。
手厥阴心包络经图
心包络这一脏器，《难经》称其无形。滑伯仁说：心包，又名手心主；从藏象学说来校正，它位于心脏下方横膈膜之上，竖膈膜之下。与横膈膜相连结、被黄色脂肪包裹的是心脏。在脂膜之外，有像丝一样的细筋膜，与心肺相连的，就是心包络。这种说法是正确的，凡是说心包络无形的观点都是错误的。
胞络，是指包裹心脏的组织，也就是膻中穴所在之处，是心脏功能发出的源头。历代说法不一，沿袭错误已久，现在加以考证纠正。
手厥阴心包络经，又名心主经，即指膻中。膻中，是臣使之官，喜乐之情由此发出。有人问：手厥阴一经，为何既叫心主，又叫心包络，还叫膻中呢？大概因为心属君火，包络属相火。君火以名分为主，相火以职司为用，相火代替君火行事。从功能作用来说，所以叫心主；从经脉名称来说，则叫心包络。又说膻中，《灵兰秘典论》说：膻中是臣使之官，喜乐由此产生。喜笑是心火所主管的，喜乐之意正与心相应。唯独称为臣使，是因为它是君主亲近的大臣。由此推断，包络就是膻中，膻中就是心主，只是同一经脉而名称各异罢了。其形态结构在心脏下方横膈膜之上，竖膈膜之下，与横膈膜相连结并被黄脂包裹的是心脏；在脂膜之外，如丝般的细筋膜与心肺相连的是心包络。然而包络不仅仅是在心脏周围联系并包裹它而已，其实是一层脂膜，环绕膈肌相互连接，与脾脏的大络脉、腹腔内的脂膜相通彻整个体腔，统系于脊柱，脏腑借此相互连接。脏腑的气血，也借此相互贯通。既然系于脊柱，那么脏腑与躯壳相连必然借此途径；脏腑的气血与躯壳灌注交流，也必然借此途径，那么包络实际上是脏腑的总枢纽。有名有形，所谓无形的说法是错误的。这条经脉多血少气，与三焦经互为表里，在戌时气血注入此经。
其临床表现有：笑个不停，手心发热，手臂和肘部拘挛紧急，腋下肿胀，严重时胸胁肢体胀满，面色发红，心烦意乱。
其经脉循行路线，起于胸中，向下联络属于心下的包络，接受足少阴肾经传来的气血。由此向下穿过膈肌，联络上脘、中脘等处的三焦；其支脉，从心包出发，向上沿着胸部，出于胁肋，下行至腋下三寸的天池穴，上行抵达腋下，向下沿着上臂内侧的天泉穴，处于手太阴肺经和手少阳三焦经两经之间，进入肘部的曲泽穴。又从肘部向下沿前臂，行走于前臂两根筋腱之间，经过郄门、间使、内关、大陵穴，进入掌心的劳宫穴，沿着中指直达指尖的中冲穴；其分支，从掌心分出，沿着无名指直达指尖，从而与手少阳三焦经交接，自关冲、液门穴向上循行。
Figure of the Hand-Jueyin Pericardium Meridian
The Pericardium (Pericardium) is described as formless in the *Nan Jing* (Classic of Difficult Issues). Hua Borren stated: The Pericardium, also known as the Hand-Shoumain (Master of the Hand); according to Zang-Xiang (Viscera and Manifestations) theory, it is located above the horizontal diaphragm and below the vertical diaphragm beneath the Heart. The part adhering to the horizontal diaphragm and wrapped in yellow fat is the Heart itself. Outside this fatty membrane, there are fine fibrous membranes like silk connecting to the Heart and Lungs; this is the Pericardium. This explanation is correct, and those who claim it is formless are wrong.
"Baoluo" refers to the tissue wrapping the Heart, which is also the location of Danzhong (Chest Center/Shanzhong), the source from which the Heart's functions emanate. Various theories have existed for a long time, perpetuating errors; these are now corrected through examination.
The Hand-Jueyin Pericardium Meridian is also called the Xin Zhu (Heart Master) meridian, referring to Danzhong. Danzhong is the "Official of the Envoy," where feelings of joy and pleasure arise. One might ask: Why does the Hand-Jueyin meridian have three names: Xin Zhu, Xin Baoluo, and Danzhong? Essentially, the Heart belongs to Minister Fire (Jun Huo), while the Pericardium belongs to Assistant Fire (Xiang Huo). Minister Fire governs by status/name, while Assistant Fire governs by function/position, acting on behalf of Minister Fire. From the perspective of function, it is called Xin Zhu; from the perspective of the meridian name, it is called Xin Baoluo. Furthermore, regarding Danzhong, the *Ling Shu·Lan Lan Mi Dian Pian* states: "Danzhong is the Official of the Envoy, where joy arises." Joyful laughter is governed by Heart Fire, so the intent of joy corresponds directly to the Heart. It is uniquely called the "Envoy" because it is a close minister to the Monarch (Emperor). By this reasoning, Baoluo is Danzhong, and Danzhong is Xin Zhu; they are merely different names for the same single meridian. Its physical structure lies above the horizontal diaphragm and below the vertical diaphragm beneath the Heart. The part connected to the horizontal diaphragm and wrapped in yellow fat is the Heart; outside this fatty membrane, the silk-like fibrous tissues connecting to the Heart and Lungs constitute the Pericardium. However, the Pericardium does not merely wrap the Heart locally; it is essentially a layer of fatty membrane surrounding the diaphragm, connecting with the Large Luo vessel of the Spleen and the fatty membranes within the abdomen, permeating the entire body cavity, and linked to the spine. Through this, the Zang-Fu organs connect with each other. The Qi and Blood of the Zang-Fu organs also communicate through this medium. Since it is linked to the spine, the connection between the internal organs and the body shell must rely on this pathway; the infusion of Qi and Blood from the internal organs to the body shell also relies on this. Thus, the Pericardium is actually the general manager of the Zang-Fu organs. It has both name and form, so the claim that it is formless is incorrect. This meridian contains much blood and little Qi, stands in interior-exterior relationship with the Sanjiao (Triple Burner) meridian, and receives Qi and Blood flow during the Xu hour (7-9 PM).
Its clinical manifestations include: incessant laughing, heat in the palms, spasms and stiffness in the arms and elbows, swelling in the axilla, and in severe cases, fullness in the chest, axilla, and limbs, redness of the face, and mental restlessness.
The meridian originates in the chest, descends to connect with the Pericardium located below the Heart, receiving transmission from the Foot-Shaoyin Kidney Meridian. From there, it passes downward through the diaphragm and connects with the Upper Wrist and Middle Wrist areas of the Sanjiao. Its branch arises from the Pericardium, ascends along the chest, emerges from the hypochondrium, descends three cun below the axilla to the Tianchi (Heavenly Pool) acupoint, ascends to reach the axilla, then descends along the medial aspect of the upper arm to the Tianquan (Heavenly Spring) acupoint, positioned midway between the Hand-Taiyin Lung Meridian and the Hand-Shaoyang Sanjiao Meridian, entering the elbow at the Quze (Pool at the Crook) acupoint. From the elbow, it descends along the forearm, running between the two tendons of the forearm, passing through the Ximen (Door of the Xi), Jianshi (Intercourse Time), Neiguan (Inner Pass), and Daling (Great Market) acupoints, entering the palm at Laogong (Palace of Labor), and following the middle finger to its tip at Zhongchong (Central Rush). Another branch diverges from the palm, follows the ring finger to its tip, and intersects with the Hand-Shaoyang Sanjiao Meridian, ascending from Guanchong (Gate of Rush) and Yemen (Liquid Gate) acupoints.