（左右共一十八穴。）
天池 天泉 曲泽 门 间使 内关 大陵 劳宫 中冲
心包一藏，《难经》言其无形。滑伯仁曰∶“心包一名手心主，以藏象棱之，在心下横膜之上。竖膜之下，
其与横膜相粘而黄脂裹者，心也。脂漫之外，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。又按《灵兰秘典论》有十二官，独少心包一官，而多“膻中者，臣使之官，喜乐出焉”一节。
今考心包藏居膈上，经始胸中，正值膻中之所；位居相火，代君行事，实臣使也。此一官者，其即此经之
谓欤。
包络者，护卫心主，不使浊气干之，正由君主云有宫城也。
（左右共四十六穴。）
关冲 液门 中渚 阳池 外关 支沟 会宗 三阳络 四渎 天井 清冷渊
消泺 会 肩 天 天牖 翳风 脉 颅息 角孙 耳门 和 丝竹空
三焦者，决渎之官，水道出焉。是经少血多气。
《中藏经》曰∶“三焦者，人之三元之气也，总领五脏六腑、营卫经络、内外左右上下之气。三焦通则内
外左右上下皆通，其于周身灌溉，和内调外，营左养右，导上宣下，莫大于此。”
三焦者，统上中下而言，故曰三；切近于脏腑，故曰焦。
上焦出于胃上口，主内而不出。中焦当胃之中脘，主腐熟水谷，蒸津液，化精微，上注于肺，化而为血，以
奉生身。下焦起阑门之下，主出而不内。
（左右两侧共计十八个穴位。）
天池、天泉、曲泽、郄门、间使、内关、大陵、劳宫、中冲。
心包这一脏器，《难经》称其为无形体。滑伯仁说：“心包又名手心主，根据藏象理论来推演，它位于心脏下方的横膈膜之上，竖膈膜之下。其中与横膈膜粘连并被黄色脂肪包裹的部分，是心脏；而在脂肪漫溢之外，有像丝一样的细筋膜，与心和肺相连的部分，就是心包。”这种说法是正确的。凡是说心包无形的观点都是错误的。另外查考《灵兰秘典论》中有十二官之职，唯独缺少心包这一官职，却多出了一段关于“膻中是臣使之官，主管喜乐”的论述。如今考证发现，心包脏居于膈肌之上，经脉起始于胸中，正好处于膻中的位置；其位居相火（寄居在肝肾之中的命门之火），代替君主（心）行使职权，确实是臣使。这一个官职，指的就是这条经脉吗？
包络的功能，是护卫心主，不让浊气干扰它，这正是由于君主（心）拥有宫城（保护屏障）的缘故。
（左右两侧共计四十六个穴位。）
关冲、液门、中渚、阳池、外关、支沟、会宗、三阳络、四渎、天井、清冷渊、消泺、肩髎、天牖、翳风、颅息、角孙、耳门、和髎、丝竹空。
《中藏经》说：“三焦，是人的三元之气，总领五脏六腑、营卫经络以及内外左右上下所有的气机。三焦通畅，则内外左右上下都通畅，它在周身灌溉滋养，调和内部与外部，滋养左侧并养护右侧，引导上部并宣通下部，没有比这更重要的了。”
三焦，统括上、中、下三部分而言，所以称为“三”；因为它切近脏腑，所以称为“焦”。
上焦出于胃的上口，主要功能是受纳食物而不排出。中焦位于胃的中脘部位，主要功能是腐熟水谷，蒸腾津液，化生精微物质，向上输送到肺，转化为血液，以供养全身生命活动。下焦起于阑门之下，主要功能是排泄糟粕而不受纳。
(Right and left sides together, eighteen acupoints.)
Tianchi (PC1), Tianquan (PC2), Quze (PC3), Ximen (PC4), Jianshi (PC5), Neiguan (PC6), Daling (PC7), Laogong (PC8), Zhongchong (PC9).
The Pericardium is one zang organ. The *Nan Jing* (Classic of Difficult Issues) states that it has no form. Hua Borén said: "The Pericardium is also called the Hand-Shaoyin Master of Heart. Based on Zang-Xiang theory (the manifestation of internal organs), it is located above the horizontal diaphragm and below the vertical diaphragm of the heart. The part adhering to the horizontal diaphragm and wrapped in yellow fat is the Heart; outside this fat layer, there are fine fibrous membranes like threads connecting to the Heart and Lungs; this is the Pericardium." This explanation is correct. Claims stating that the Pericardium is formless are incorrect. Furthermore, consulting the *Ling Lan Mi Dian Lun* (Treatise on the Secret Canon of Spiritual Orchids), which lists twelve official functions, omits the Pericardium but adds a section regarding the "Shanzhong (Chest Center) as the Official of the Envoy, from whom joy and pleasure emanate." Upon examination, the Pericardium organ resides above the diaphragm, and its meridian begins in the chest, precisely at the location of Shanzhong; it houses Xianghuo (Ministerial Fire, fire residing in the Liver and Kidneys acting as the gate of life), performing duties on behalf of the Sovereign (Heart), truly serving as an envoy. Is this official function referring to this meridian?
The Bao Luo (Pericardium Collateral) protects the Master of the Heart, preventing turbid qi from interfering with it. This is exactly because the Sovereign possesses a palace city (protective barrier).
(Right and left sides together, forty-six acupoints.)
Guanchong (TE1), Yemen (TE2), Zhongzhu (TE3), Yangchi (TE4), Waiguan (TE5), Zhigou (TE6), Huizong (TE7), Sanyangluo (TE8), Sidu (TE9), Tianjing (TE10), Qinglengyuan (TE11), Xiaoluo (TE12), Jianliao (TE13), Tianyou (TE14), Yifeng (TE17), Luxi (TE18), Jiaosun (TE19), Ermen (TE21), Heliao (TE22), Sizhukong (TE23).
The Sanjiao (Triple Burner) is the Official of Drainage and Ditching, through which water passages flow. This meridian is characterized by having little blood and abundant qi.
The *Zhong Zang Jing* (Classic of Middle Viscera) states: "The Sanjiao is the Qi of the Three Origins of humans, commanding the Five Zang and Six Fu organs, Ying-Wei (Nutritive and Defensive) meridians, and the qi of the interior, exterior, left, right, upper, and lower. When the Sanjiao is unobstructed, the interior, exterior, left, right, upper, and lower all become unobstructed. In terms of irrigating the whole body, harmonizing the interior and exterior, nourishing the left and protecting the right, guiding the upper and venting the lower, nothing surpasses this."
Sanjiao refers collectively to the Upper, Middle, and Lower sections, hence the name "Three"; because it is close to the viscera, it is named "Jiao" (Burner/Scorched).
The Upper Jiao emerges from the upper orifice of the Stomach, primarily responsible for receiving and not discharging. The Middle Jiao is located at the middle epigastrium of the Stomach, primarily responsible for rotting and ripening food and drink, steaming fluids, transforming essence and subtle substances, sending them upward to the Lung, where they transform into blood to sustain the living body. The Lower Jiao begins below the Lanmen (Gate of the Appendix/Ileocecal junction), primarily responsible for discharging and not receiving.