（一名心主，以脏象校之，在心下横膜之上，竖膜之下，与横膜相粘，而黄脂漫裹者，心也。
其漫脂之外，有细筋膜如丝，与心肺相连者，心包也。心为君火，心包为相火，代君火行事。以用而言，则曰
手心主；以经而言，则曰心包络，一经而二名也）《灵枢》曰∶手厥阴心包络之脉，起于胸中，出属心包（心
为五脏六腑之大主，诸邪之在心，皆在心之包络。包络者，心主之脉也。胸中，当两乳之间，而为心主之外卫）
络，下膈，历络三焦（三焦，为脏腑之外卫，诸经皆无历字，独此有之，盖指上、中、下而言，上即膻中，中
即中脘，下即脐下。故任脉之阴交穴，为三焦募也）；其支者，循胸出胁，下腋三寸（肋上际为腋，腋下三寸
天池也，手厥阴经始此），上抵腋下，循 内，行太阴、少阴之间（上抵腋下之天泉，循 内行太阴、少阴之
间，以手之三阴厥阴在中也），入肘中，下臂，行两筋之间（入肘中，曲泽穴也，下臂行两脉之间， 门、间
使、内关、大陵），入掌中指，循中指，出其端（入掌中，劳宫也。中指端，中冲也，手厥阴止于此），其支
者，别掌中，循小指次指出其端（小指之次，即无名指也。其支者，自劳宫别行无名指端，而接乎手少阳也）。
其别，名曰内关，去腕二寸，出于两筋之间，循经以上系于心包，络心系。实则心痛，虚则为头强，而取之两
筋间也（手厥阴之络，名内关，在掌后去腕二寸两筋间，别走手少阳者也。此经系心包，络心系，又出耳后，
合少阳完骨之下。病取内关治之）。其正，别入渊腋三寸，入胸中，别属三焦，出循喉咙，出耳后，合少阳完
骨之下，此为五合
（手厥阴之正，其别而内行者，与少阴之脉同，自腋下三寸。足少阳渊腋之次，入胸中，属三焦，乃出循喉咙，
行于耳后，合手、足少阳于完骨之下。此乃六合之五也）。其筋起于中指，与太阴之筋并行，结于肘内廉（中
指端，中冲之次也。循指入掌中，至掌后大陵之次，并手太阴之筋，上结于肘内廉曲泽之次），上臂阴，结腋下，
下散前后挟胁（上臂阴天泉之次，由曲腋间，并太阴之筋，结于腋下，当天池之次下行，前后布散挟胁，联于
手太阴、足少阳之筋。此经自掌至腋，皆刚筋也）；其支者，入腋，散胸中，结于臂（此支者，自天池之分，
入腋内，散于胸中。臂，当作贲。盖此支并太阴之筋，入散胸中，故同结于贲门也）。是动则病手心热，臂肘
挛急，腋肿，甚则胸胁支满，心中 大动，面赤目黄，喜笑不休。是主脉所生病者，烦心心痛，掌中热，盛
者寸口大一倍于人迎，虚者寸口反小于人迎也。
（心包络，又名心主。通过观察脏腑的象位来校对，它位于心脏下方横膈膜之上、竖膈膜之下，与横膈膜粘连，并被黄色脂肪包裹的组织，就是心脏。在黄色脂肪的外面，有像丝一样的细筋膜，与心和肺相连的组织，就是心包络。心属于君火，心包络属于相火，代替君火行使职能。从功能作用来说，称为手心主；从经络名称来说，称为心包络，这是一条经脉的两个名字。）《灵枢》说：手厥阴心包络经，起始于胸中，出来归属于心包络（心是五脏六腑的大主宰，各种邪气侵犯心脏，都侵犯心包络。心包络，就是心主的经脉。胸中，位于两乳之间，作为心主的外围护卫），联络向下穿过膈肌，依次联络上、中、下三焦（三焦，是脏腑的外围护卫，其他各条经脉都没有“历”字，唯独这条经脉有，大概是指上、中、下三部分而言，上部即膻中穴所在处，中部即中脘穴所在处，下部即脐下部位。所以任脉的阴交穴，是三焦的募穴）；它的分支，沿着胸部出于胁肋部，下行至腋下三寸（肋骨上际为腋窝，腋下三寸是天池穴，手厥阴经从此开始），向上到达腋下，沿着臂内侧，行走在手太阴肺经和手少阴心经之间（向上到达腋下的天泉穴，沿着臂内侧行走，位于手太阴、手少阴二经之间，因为手三阴经中，厥阴经位于中间），进入肘中，下行前臂，行走在两条筋腱之间（进入肘中，是曲泽穴；下行前臂行走在两条经脉之间，经过郄门、间使、内关、大陵穴），进入手掌，到达中指，沿着中指，从其末端穿出（进入掌中，是劳宫穴。中指端是中冲穴，手厥阴经止于此）。它的另一分支，从掌中分出，沿着无名指走出其末端（小指的旁边，就是无名指。这一分支，从劳宫穴别出，行至无名指端，从而接手少阳三焦经）。它的别络，名叫内关，距离腕横纹二寸，出于两条筋腱之间，沿着经脉向上联系于心包络，联络心系。实证表现为心痛，虚证则表现为头项强急，治疗时取两条筋腱之间的穴位（手厥阴的别络，名叫内关，在掌后距离腕横纹二寸的两筋之间，别行走向手少阳经。这条经脉系于心包，络于心系，又出于耳后，汇合于足少阳胆经完骨穴之下。病证取内关穴治疗）。其正脉，另外进入渊腋穴下三寸，进入胸中，别行归属于三焦，出来沿着喉咙，出于耳后，汇合于足少阳胆经完骨穴之下，这是六合中的第五合（手厥阴的正脉，其中向内行的分支，与手少阴心经的脉路相同，自腋下三寸、足少阳胆经渊腋穴旁侧，进入胸中，归属于三焦，然后出来沿着喉咙，行于耳后，汇合手、足少阳经于完骨穴之下。这就是六合中的第五合）。其经筋起始于中指，与手太阴肺经的经筋并行，结聚于肘关节内侧（中指端是中冲穴旁边。沿着手指进入掌中，至掌后大陵穴旁边，与手太阴经筋并行，向上结聚于肘关节内侧曲泽穴旁边），沿上臂内侧上行，结聚于腋下，向下散开，前后分布于胁肋两侧（上臂阴面的天泉穴旁边，由曲腋间，与手太阴经筋并行，结聚于腋下，位于天池穴旁边下行，前后布散挟持胁肋，联属手太阴、足少阳经筋。这条经脉自手掌至腋下，都是刚硬的筋）；它的分支，进入腋窝，散在于胸中，结聚于贲门（这一分支，从天池穴处分出，进入腋内，散在于胸中。这里的“臂”字，应当作“贲”。因为这一分支与手太阴经筋并行，进入并散在于胸中，所以共同结聚于贲门）。当经脉发生变动时，会出现掌心发热，手臂和肘部挛急，腋窝肿胀，严重时胸胁支撑胀满，心中悸动不安，面色发红，眼睛发黄，喜欢笑不止。这条经脉主治脉所生的病证，包括心烦、心痛，掌心发热。实证时，寸口脉比人迎脉大一倍；虚证时，寸口脉反而小于人迎脉。
(The Pericardium Collateral, also known as the Master of the Heart. By examining the zang-organ manifestations, it is located above the horizontal diaphragm and below the vertical diaphragm, adhering to the horizontal diaphragm, and wrapped in yellow adipose tissue; this is the Heart. Outside this yellow adipose tissue, there are fine fibrous membranes like silk connecting to the Heart and Lungs; this is the Pericardium. The Heart belongs to Ministerial Fire (Jun Huo), while the Pericardium belongs to Ministerial Fire (Xiang Huo) and acts on behalf of the Ministerial Fire. In terms of function, it is called the Hand Jueyin Pericardium; in terms of meridian nomenclature, it is called the Pericardium Collateral (Xin Bao Luo). This is one meridian with two names.) The *Ling Shu* states: The Hand Jueyin Pericardium Collateral Meridian originates in the chest, emerges and connects to the Pericardium (The Heart is the great master of the five zang and six fu organs; when various pathogens invade the Heart, they invade the Pericardium Collateral instead. The Pericardium Collateral is the meridian of the Master of the Heart. The chest refers to the area between the two breasts, serving as the external guard for the Master of the Heart), descends through the diaphragm, and sequentially connects to the Sanjiao (The Sanjiao serves as the external guard for the zang-fu organs. Among all meridians, only this one uses the character "li" (to pass through/sequence), which likely refers to the upper, middle, and lower sections. The upper section corresponds to the Danzhong area, the middle to the Zhongwan area, and the lower to the area below the umbilicus. Therefore, the Yinjiao point of the Ren Mai is the mu-point of the Sanjiao); its branch follows the chest, emerges from the hypochondrium, and descends three cun below the axilla (the upper border of the ribs marks the axilla; Tianchi, three cun below the axilla, is where the Hand Jueyin meridian begins), ascends to reach the axilla, runs along the medial aspect of the arm, passing between the Taiyin and Shaoyin meridians (ascending to Tianquan in the axilla, running along the medial arm between the Hand Taiyin and Hand Shaoyin meridians, because among the three yin meridians of the hand, the Jueyin is in the middle), enters the elbow center, descends the forearm, running between two tendons (entering the elbow center is Quze; descending the forearm between two vessels passes through Ximen, Jiashi, Neiguan, and Daling), enters the palm and reaches the middle finger, follows the middle finger, and exits at its tip (entering the palm is Laogong. The tip of the middle finger is Zhongchong, where the Hand Jueyin meridian ends). Its other branch diverges from the palm, follows the ring finger, and exits at its tip (the finger next to the little finger is the ring finger. This branch diverges from Laogong, travels to the tip of the ring finger, and connects to the Hand Shaoyang Sanjiao Meridian). Its collateral is named Neiguan, two cun from the wrist crease, emerging between two tendons, following the meridian upward to connect to the Pericardium and link with the Heart system. Excess conditions manifest as heart pain, while deficiency conditions manifest as stiffness and rigidity of the head and neck; treatment involves selecting points between the two tendons (The collateral of the Hand Jueyin is named Neiguan, located two cun distal to the wrist crease between two tendons, diverging to connect with the Hand Shaoyang meridian. This meridian connects to the Pericardium, links with the Heart system, emerges behind the ear, and converges below the Wanggu point of the Shaoyang meridian. For diseases, treat with Neiguan). Its main pathway additionally enters three cun below Yuanye, enters the chest, diverges to connect to the Sanjiao, emerges following the throat, exits behind the ear, and converges below the Wanggu point of the Shaoyang meridian; this constitutes the fifth of the Six Convergences (The main pathway of the Hand Jueyin, specifically its internal branch, follows a path similar to the Shaoyin meridian, starting from three cun below the axilla, beside the Yuanye point of the Foot Shaoyang meridian, entering the chest, connecting to the Sanjiao, then emerging to follow the throat, traveling behind the ear, and converging with the Hand and Foot Shaoyang meridians below Wanggu. This is the fifth of the Six Convergences). Its sinews originate at the middle finger, run parallel with the sinews of the Taiyin, and knot at the medial aspect of the elbow (beside the tip of the middle finger, Zhongchong; following the finger into the palm, to beside Daling at the wrist, running parallel with the Hand Taiyin sinews, ascending to knot at the medial aspect of the elbow beside Quze), ascend along the medial aspect of the upper arm, knot at the axilla, and descend to scatter anteriorly and posteriorly flanking the hypochondrium (beside Tianquan on the medial aspect of the upper arm, from the curved axillary region, running parallel with the Taiyin sinews, knotting at the axilla beside Tianchi, descending, scattering anteriorly and posteriorly to flank the hypochondrium, linking with the Hand Taiyin and Foot Shaoyang sinews. From the palm to the axilla, this meridian consists of rigid sinews); its branch enters the axilla, scatters in the chest, and knots at the贲 (ben) gate (this branch diverges from Tianchi, enters the interior of the axilla, and scatters in the chest. The character "bi" (arm) here should be read as "ben". Since this branch runs parallel with the Hand Taiyin sinews, entering and scattering in the chest, it thus knots together at the ben gate). When the meridian is disturbed, symptoms include heat in the palm, spasm and stiffness of the arm and elbow, swelling of the axilla, and in severe cases, fullness and distension supporting the chest and hypochondrium, palpitations of the heart, redness of the face, yellowing of the eyes, and uncontrollable laughter. This meridian governs diseases related to the vessels, including vexation, heart pain, and heat in the palms. In excess conditions, the Cun Kou pulse is one times larger than the Ren Ying pulse; in deficiency conditions, the Cun Kou pulse is smaller than the Ren Ying pulse.