治病须分经络，古人以经界喻之，犹夫射之的，御之范也。
《灵枢·经脉》一篇，为我医所必读，惟是其文参差繁复，习者苦之。东垣编为歌诀，国朝汪 庵更为谐畅，
可谓记诵无难矣。惟是熟此经脉，于逐经之起止，循行虽已了了，而人之身体每一处有两三经，或四五经，错
综循及者，皆散见于各经之下，临证仓卒，未免或遗。兹不揣愚陋，窃以人身自巅至足，凡十二经络行及之
所，汇而辑之。再奇经八脉，除带脉及阴阳维跷、皆简明易晓、可无纂辑外，其冲任督三经亦为摘入。仿四六
之体，编为俚句，而不拘拈对，不嫌粗俗，惟求便于记诵。俾人之身体四肢，一云某处，便识为某经某络，实
为临证辨经分经议治之快捷方式，但不敢曰熟此总诀，竟可置经文而不读也。譬之《本草纲目》既已按药而治病，
复有《本草类方》为之按病以集方，二者纵横为用，尤为心目 然耳。
头上诸脉
盖闻手之三阴，从脏走手；（手太阴肺，少阴心，厥阴心包。）手之三
阳，从手走头。（手少阳三焦，阳明大肠，太阳小肠。）足之三阳，从头走足；（足太阳膀胱，阳明胃，少阳
胆。）足之三阴，从足走腹。（足太阴脾，少阴肾，厥阴肝。）《灵》已逐一而分言，兹乃合编而便读。膀胱
之脉交于巅，肝与督脉会于巅，络脑须知膀督。（惟欲便于诵读，故用简字诀。余仿此。）发际循乎胃脉，
胃至额颅。（发际下为额颅。）胆抵头额，上额者督与膀胱，（在内直上。）出额者其惟肝脉。（在外直出。）
目系连于肝脉，心之支者并系目之内角，名曰内 。小支至而膀胱起，胃经远约于其旁。（小肠之支者，至目
内，膀胱之脉、起于目内 、胃脉起于鼻之交 中，旁约太阳之脉、下循鼻外，约一作纳。）目之外角，名
曰锐 ，胆接焦支。（三焦之支者至目锐 ，胆脉起于目锐 。）小肠亦至目下为 ，（音
拙。）焦胆小肠而合至。（三脉俱支者。）两旁为颊，大小肝焦而上下。（夹面横骨为颊。大肠贯颊，小肠上
颊，肝与三焦俱下颊，四脉亦俱支者。）小肠之支，斜络于颧。督脉至于鼻柱，胃脉起于交 。（即山根。）
大肠之支，挟鼻孔而交中挟口。（从下齿还出挟口，交人中，左之右，右之左，上
挟鼻孔，至迎香穴而终，交足阳明经。）胃经之脉，循鼻外而挟口环唇，肝又环于唇内，胃又交于承浆。（
下唇陷中。）胃经之脉入上齿，大肠之支入下齿，颔前大迎，胃脉出而胆支下。（腮下为颔，颔前一寸三分动
脉陷中为大迎，乃胃经穴。）颔下为颐，胃脉循而任脉上。（胃脉循颐后下廉。）耳之上角，焦支出而膀支
至，客主人穴，胆出走而胃脉过。（耳前上廉起骨曰客主人，乃胆经穴。胆脉之支者出走耳前，至目锐 后。胃
脉上耳前，过客主人。）三焦之孙脉，出走客主人前。（《灵枢》云∶经脉为里，支而横者为络，络之别者为
孙，此支之岐者，故曰孙脉，后仿此。）小肠与焦胆，三支并入耳中。胆脉焦支，系于耳后，胆支胃脉，循在
颊车。（耳下曲骨为夹车。）咽有小心，脾肾之脉。（小肠脉循咽，心脉之支者挟咽，脾脉挟咽，肾脉至咽。）
喉为胃支，肾脉之循。（二脉循喉咙。）肝循喉后而入咽颡。（肝脉循喉咙之后，上入咽颡。咽颡一名颃颡，在
上后。）脾连舌本而散舌下，肾脉挟乎舌本。胃支下在人迎。（结喉旁一寸五分动脉。）此为
诸阳之会。先须大略而陈。
在身诸脉
原夫脑后为项，膀胱督脉与焦支。两旁为颈，大小肠支同胆脉。肩 骨之前廉，大肠出之。肩后之下为膊，
膀胱循也。焦胆小肠，交合于肩。（会于大椎者为肩。）肾经督脉，并贯于脊。脊骨两旁
第一行，相去各一寸五分。挟脊肉为膂，膀胱循之而挟脊，脊骨两旁第二行，相去各三寸。成片骨为胛，（
音夹。）小肠绕而膀支贯。至于肩前陷下，名曰缺盆，焦胆胃肠，并入其中。是以胆脉循胸，三焦布膻。（
上焦两乳中间为膻中。）乳内廉乃胃经直下，腋之中分胆经包络。（心包络，亦有直者支者之分，恐辞句繁复，
故此处支者仅云包络。下文正脉，乃用心包二字以别之。）腋下为包络之过，心直下而肺横出。胁里为胆脉之
循，心包出而肝经布。胁骨之下为季胁，须识胆经之过。脐下四寸为中极，当知任脉之起。（任脉起于中极之下。）然
而任脉当脐，冲胃挟脐。脾脉入腹，胃支循腹。肝脉上抵乎小腹，胆胃出入于气街。（脐下毛际两旁动脉，
为气街，一名气冲，乃胃经穴。）胆绕毛际，（曲骨之外为毛际。）肝环阴器。此在身躯之脉，所当胪列而明。
脏腑中诸脉
其在脏腑之脉，太阳与少阴为表里；（手太阳小肠，少阴心。足太阳膀胱，少阴肾。）少阳与厥阴为表
里；（手少阳三焦，厥阴心包；足少阳胆，厥阴肝。）阳明与太阴为表里。（手阳明大肠，太阴肺。足阳明胃，
太阴脾。）凡此六经、脉皆互络，手足同然，无须详赘。（如肺脉络大肠，大肠脉络肺之类，十二经皆仿此。）
更有肺之一脏，心直上而肾直入，胃之一腑，肝脉挟而肺小循。（肝脉挟胃，肺脉还循胃口，小肠之脉抵胃。）
心有肾支之络，肝有肾经之贯，肝支又注于心中，肺脉自起于中焦，心下有膈，惟膀胱为无涉，十有一经，
皆上下而贯之。（心下膈膜，遮隔浊气，不使上薰心肺。惟膀胱之脉，挟脊抵腰中，入循膂，络肾属膀胱，
故不贯膈。）此属脏腑之间，并须熟谙者。
手经诸脉
论乎肩肘之间，乃号为 。（音柔。俗名大臂。） 之内廉有三，肺循前而心循后，包络恰循乎其间。
之外廉有三，小循后而大循前，三焦乃循乎其外。 下为肘，三焦上贯内廉，尺泽包络入之，（包络之支者
，入肘内陷中尺泽穴。）肺则下于内前，心又下于内后，（肺脉下肘中，心脉下肘内，惟肺脉行前。心脉行
后，心包行其中间为别。）小肠出于内侧，（两筋之间。）大肠入于外廉。肘下为臂，包仍在中。（即上文支
者。）大循上而小循下，心脉仍循内后廉，上骨下廉之内，仍循肺脉，臂外两骨之间，还出三焦。肺入寸口
而循鱼际，（关前动脉为寸口，大指后肉隆起处为鱼际，鱼际其间穴名。）心抵锐骨而入后廉，（心脉抵掌
后锐骨之端，入掌内后廉。）包络直入于掌中，（从曲泽行掌后两筋之间，横纹陷中，入掌中。）
三焦仍循乎表腕，大肠出于合谷，而上入两筋之中。（
合谷俗名虎口，大肠经穴。）小肠循于外侧，而出腕下之踝。（循手外侧，上
腕出踝中。踝，音华，上声。腕，外兑骨。）肺脉出于大指，包络出于中指，次指为肺支、肠脉之交。（肺脉之支
者，直出次指内廉出其端。大肠之脉，起于次指之端。）四指为包络、焦脉之接，三焦又上出小、次之
间。小指为心脉、小肠之接。所谓手经，大略如斯。
足经诸脉
至如尻上为腰，膀胱脉抵。（背脊下横骨为腰。）腰下为臀，膀支贯之。两旁捷骨之下名髀枢，而胆横膀
过。（一名髀厌，胆脉横入髀厌中。膀胱之支者过脾枢。）前面气街之下号髀关，而胃经直下。股之内廉，
前廉脾而后廉肾，又肝脉内循于股阴。股外为髀，后膀支而前胃脉，（髀前膝上六寸，起肉为伏兔，胃脉抵之。）
又胆脉下循于髀阳。（循髀外行太阳、阳明之间。）是以挟膝筋中为膑。（即膝盖骨。）仍属胃经之直
下，而膝内脾经，（内前廉。）膝外胆脉，（外廉。）膝后曲处为 ，还是膀支之直入，而肾出肝上，俱在
内廉。（肾脉出 内廉，肝脉上 内廉。）脾肾上于 内，（ ，足肚也，二豚上 内廉。）旁支贯于 外。（
从中下贯 内，出外踝之后。）胆下于外辅骨前，而直抵绝骨之端。（脾骨为辅骨，外踝上为绝骨。）肝
斜于胫 内侧，而胃循胫外之廉。内踝有脾前肾后之分，外踝有胆前膀后之别。（跟上两旁，内外曰踝。）
大指节后为核骨，脾经脉过。足外侧骨为京骨，膀脉支循。肾入跟中，胃胆循跗，跗上廉乃肝经循处。足心
中有肾脉斜趋。（涌泉穴。）大指甲后，属胆支肝脉之交。大指内侧，为胃支脾脉之接。中指内外，分胃
直胃支之入。四指之间，又胆经直入而终。膀支至于小指之外，肾脉起于小指之下，足经之脉，又如此也。
Treating disease requires distinguishing the meridians. The ancients used "meridian boundaries" to metaphorize them, just as archery requires a target and driving requires wheel ruts.
The chapter *Jingmai* (Meridians) in the *Ling Shu* (Spiritual Pivot) is a must-read for physicians, yet its text is uneven and complex, causing difficulty for learners. Li Dongyuan compiled it into rhymed verses, and Wang Ang of this dynasty further refined it for fluency, making memorization effortless. However, merely mastering these meridian descriptions, while clarifying the start and end points and pathways of each individual meridian, is insufficient because multiple meridians (two, three, or even four or five) intersect at every part of the body. These intersections are scattered across various meridian descriptions, leading to omissions during hasty clinical practice. Therefore, presumptuously disregarding my own limitations, I have collected and organized all locations traversed by the twelve regular meridians from the vertex to the soles. Regarding the Eight Extraordinary Vessels, except for the Dai Mai (Girdle Vessel) and the Yin/Yang Wei and Chiao vessels, which are concise and clear, I have also excerpted the Chong, Ren, and Du vessels. Mimicking the four- and six-character structure, I composed colloquial sentences without strict parallelism or concern for vulgarity, solely aiming for ease of memorization. This allows one to identify specific meridians and collaterals upon mentioning any body part, serving as a shortcut for differentiating meridians and prescribing treatment clinically. However, I dare not claim that memorizing this summary obviates the need to read the original texts. It is akin to how the *Ben Cao Gang Mu* (Compendium of Materia Medica) treats diseases by herb, while the *Ben Cao Lei Fang* (Classified Formulas of Materia Medica) collects formulas by disease; their combined use brings clarity to both mind and eye.
**Meridians of the Head**
It is heard that the Three Yin Meridians of the Hand travel from the Zang organs to the hands: (Hand Taiyin Lung, Hand Shaoyin Heart, Hand Jueyin Pericardium.) The Three Yang Meridians of the Hand travel from the hands to the head: (Hand Shaoyang Sanjiao, Hand Yangming Large Intestine, Hand Taiyang Small Intestine.) The Three Yang Meridians of the Foot travel from the head to the feet: (Foot Taiyang Bladder, Foot Yangming Stomach, Foot Shaoyang Gallbladder.) The Three Yin Meridians of the Foot travel from the feet to the abdomen: (Foot Taiyin Spleen, Foot Shaoyin Kidney, Foot Jueyin Liver.) The *Ling Shu* has already described them individually; here they are combined for easier reading. The Bladder meridian intersects at the vertex; the Liver and Du vessels meet at the vertex, connecting to the brain—know the Bladder and Du vessels. (Simplified characters are used for recitation convenience, following this pattern elsewhere.) The hairline follows the Stomach meridian, reaching the forehead and skull. (Below the hairline is the forehead.) The Gallbladder meridian reaches the forehead; those ascending to the forehead are the Du and Bladder vessels (straight up internally), while those exiting laterally are only the Liver meridian (straight out externally). The eye system connects to the Liver meridian; a branch of the Heart meridian runs alongside the inner canthus, named Neiqu (Inner Canthus). A small branch reaches the inner canthus where the Bladder meridian begins; the Stomach meridian is constrained nearby. (A branch of the Small Intestine meridian reaches the inner canthus; the Bladder meridian begins at the inner canthus; the Stomach meridian begins at the nasal bridge intersection, constraining the Taiyang meridian laterally, descending along the lateral nose; 'constrain' may be read as 'na'.) The outer canthus is named Ruiqi (Outer Canthus); the Gallbladder meridian connects with the Sanjiao branch. (The Sanjiao branch reaches the outer canthus; the Gallbladder meridian begins at the outer canthus.) The Small Intestine meridian also reaches below the eye at the cheekbone, (pronounced 'zhuo'). The Sanjiao, Gallbladder, and Small Intestine meridians converge here via branches. (All three have branches reaching this point.) The sides are the cheeks, traversed by the Large Intestine, Small Intestine, Liver, and Sanjiao meridians. (The transverse bone of the face forms the cheek. The Large Intestine meridian passes through the cheek; the Small Intestine ascends the cheek; the Liver and Sanjiao descend the cheek; all four are branches.) A branch of the Small Intestine meridian斜ically connects to the zygoma. The Du vessel reaches the nasal column; the Stomach meridian begins at the nasal root intersection. (i.e., Shan Gen.) A branch of the Large Intestine meridian flanks the nostrils and intersects at the Philtrum, then crosses over (left to right, right to left), ascending to flank the nostrils, ending at Yingxiang acupoint, intersecting with the Foot Yangming Stomach meridian.) The Stomach meridian follows the lateral nose, flanks the mouth, and encircles the lips; the Liver meridian also encircles the inside of the lips; the Stomach meridian intersects at Chengjiang. (Depression in the lower lip.) The Stomach meridian enters the upper teeth; a branch of the Large Intestine meridian enters the lower teeth. At Daying before the chin, the Stomach meridian exits while the Gallbladder branch descends. (The area below the jaw is the chin; Daying is 1.3 cun anterior to the chin in the pulsating depression, an acupoint of the Stomach meridian.) Below the chin is the Yi region; the Stomach meridian follows while the Ren meridian ascends. (The Stomach meridian follows the posterior-lower margin of Yi.) At the upper angle of the ear, the Sanjiao branch exits and the Bladder branch arrives at the Keyuzhuren acupoint; the Gallbladder meridian exits while the Stomach meridian passes. (Keyuzhuren is the protruding bone at the anterolateral aspect of the ear, an acupoint of the Gallbladder meridian. The Gallbladder branch exits anterior to the ear to the outer canthus. The Stomach meridian ascends anterior to the ear, passing Keyuzhuren.) The Sun (Grandchild) vessels of the Sanjiao exit anterior to Keyuzhuren. (*Ling Shu* states: Meridians are the interior; branches crossing horizontally are Collaterals; distinct parts of Collaterals are Sun vessels. This is a divergent branch, hence called Sun vessel, following this pattern subsequently.) The Small Intestine, Sanjiao, and Gallbladder meridians merge three branches into the ear. The Gallbladder meridian and Sanjiao branch attach behind the ear; the Gallbladder branch and Stomach meridian follow the Jiache acupoint. (The curved bone below the ear is Jiache.) The pharynx involves the "Xiao Xin" (Lesser Heart/Pericardium), traversed by the Spleen and Kidney meridians. (The Small Intestine meridian follows the pharynx; a branch of the Heart meridian flanks the pharynx; the Spleen meridian flanks the pharynx; the Kidney meridian reaches the pharynx.) The larynx is the path of the Stomach branch and the Kidney meridian. (These two meridians follow the larynx.) The Liver meridian follows posterior to the larynx and enters the epiglottis/pharynx. (The Liver meridian follows posterior to the larynx, ascending into the epiglottis/pharynx. Epiglottis/pharynx is also called Hangsang, located posterior-superiorly.) The Spleen meridian connects to the root of the tongue and disperses under it; the Kidney meridian flanks the root of the tongue. The Stomach branch descends at Renying. (Pulsating depression 1.5 cun lateral to the thyroid cartilage.) This is the convergence of all Yang meridians. A general overview is presented first.
**Meridians of the Body**
Posteriorly, the neck is the domain of the Bladder, Du, and Sanjiao branches. Laterally, the neck contains the Large Intestine, Small Intestine, and Gallbladder meridians. Anterior to the scapula is the path of the Large Intestine meridian. Posterior-inferior to the shoulder is the Bo region, traversed by the Bladder meridian. The Sanjiao, Gallbladder, and Small Intestine meridians intersect at the shoulder. (Meeting at Dazhui constitutes the shoulder.) The Kidney and Du meridians penetrate the spine. In the first row lateral to the spine, spaced 1.5 cun apart, lies the Lv muscle (paraspinal muscles), followed by the Bladder meridian. In the second row, spaced 3 cun apart, lies the Scapula (blade-like bone), circled by the Small Intestine meridian and penetrated by the Bladder branch. Anteriorly, the depression before the shoulder is Quepen; the Sanjiao, Gallbladder, Stomach, and Intestine meridians enter here. Thus, the Gallbladder meridian follows the chest, and the Sanjiao distributes at Shanzhong. (Shanzhong is between the nipples, representing Upper Jiao.) The medial breast line is the direct descent of the Stomach meridian; the axilla center is enclosed by the Gallbladder and Pericardium meridians. (The Pericardium has direct and branch distinctions; to avoid complexity, only "Pericardium" is mentioned for branches here. The main meridian uses "Heart Pericardium" later for distinction.) The axilla is passed by the Pericardium; the Heart meridian descends directly while the Lung meridian emerges transversely. The interior of the hypochondrium is the path of the Gallbladder meridian; the Pericardium emerges and the Liver meridian distributes. Below the costal margin is the Ji Xie (hypochondriac region), marked by the Gallbladder meridian. Zhongji, 4 cun below the umbilicus, marks the origin of the Ren meridian. (The Ren meridian originates below Zhongji.) However, the Ren meridian aligns with the umbilicus, while the Chong and Stomach meridians flank it. The Spleen meridian enters the abdomen; the Stomach branch follows the abdomen. The Liver meridian ascends to the lower abdomen; the Gallbladder and Stomach meridians pass through Qijie. (Qijie, also known as Qichong, is the pulsating area bilateral to the pubic hairline, an acupoint of the Stomach meridian.) The Gallbladder meridian circles the pubic hairline. (Outside Qugu is the pubic hairline.) The Liver meridian surrounds the genitalia. These are the meridians of the trunk, listed clearly.
**Meridians within Zang-Fu Organs**
Regarding Zang-Fu meridians, Taiyang and Shaoyin are exterior-interior pairs; (Hand Taiyang Small Intestine, Hand Shaoyin Heart; Foot Taiyang Bladder, Foot Shaoyin Kidney.) Shaoyang and Jueyin are exterior-interior pairs; (Hand Shaoyang Sanjiao, Hand Jueyin Pericardium; Foot Shaoyang Gallbladder, Foot Jueyin Liver.) Yangming and Taiyin are exterior-interior pairs. (Hand Yangming Large Intestine, Hand Taiyin Lung; Foot Yangming Stomach, Foot Taiyin Spleen.) These six pairs of meridians interconnect mutually, consistent in both hands and feet, requiring no detailed elaboration. (e.g., Lung meridian connects to Large Intestine, Large Intestine to Lung; all twelve meridians follow this.) Additionally, for the Lung organ, the Heart meridian ascends directly and the Kidney meridian enters directly; for the Stomach organ, the Liver meridian flanks it, and the Lung and Small Intestine meridians follow. (Liver meridian flanks Stomach; Lung meridian loops back to stomach opening; Small Intestine meridian reaches stomach.) The Heart has collateral connections from the Kidney meridian; the Liver is penetrated by the Kidney meridian; a Liver branch injects into the Heart; the Lung meridian originates from the Middle Jiao. Below the Heart lies the Diaphragm; only the Bladder meridian does not traverse it. Eleven meridians penetrate vertically above and below the diaphragm. (The diaphragm below the Heart blocks turbid Qi from steaming the Heart and Lungs. Only the Bladder meridian, following the spine to the waist, entering the Lv muscle, connecting to the Kidney and belonging to the Bladder, does not cross the diaphragm.) These internal Zang-Fu connections must be thoroughly mastered.
**Meridians of the Hand**
Between the shoulder and elbow lies the Gong (upper arm). (Pronounced 'rou'. Commonly called upper arm.) There are three meridians on the medial side of the Gong: the Lung meridian follows anteriorly, the Heart meridian posteriorly, and the Pericardium exactly in between. There are three meridians on the lateral side: the Small Intestine follows posteriorly, the Large Intestine anteriorly, and the Sanjiao externally. Below the elbow is the forearm. The Pericardium remains in the middle. (Referring to the branch mentioned above.) The Large Intestine follows superiorly and the Small Intestine inferiorly; the Heart meridian still follows the posterior-medial margin. Internally to the lower edge of the ulna, the Lung meridian continues; between the two bones of the forearm laterally, the Sanjiao reappears. The Lung meridian enters Cun Kou (pulse position) and follows Yu Ji. (Cun Kou is the arterial pulse anterior to the Guan; Yu Ji is the fleshy eminence posterior to the thumb; acupoints lie between them.) The Heart meridian reaches the sharp bone and enters the posterior margin. (The Heart meridian reaches the distal end of the styloid process of the ulna, entering the posterior medial palm.) The Pericardium enters directly into the palm center. (From Quze, between the two tendons posterior to the wrist, in the transverse crease depression, entering the palm.) The Sanjiao still follows the dorsal wrist; the Large Intestine emerges at Hegu and enters between the two tendons superiorly. (Hegu, commonly called Tiger's Mouth, is an acupoint of the Large Intestine meridian.) The Small Intestine meridian follows the lateral side and emerges at the ankle below the wrist. (Following the lateral hand, ascending the wrist, emerging at the ankle. Ankle, pronounced 'hua', rising tone. Wrist, the radial/ulnar prominence.) The Lung meridian emerges at the thumb; the Pericardium at the middle finger; the index finger is the junction of the Lung branch and Large Intestine meridian. (The Lung branch emerges straight from the medial side of the index finger tip. The Large Intestine meridian originates at the tip of the index finger.) The ring finger is the connection for the Pericardium and Sanjiao meridians; the Sanjiao ascends between the little and index fingers. The little finger is the junction of the Heart and Small Intestine meridians. Such are the meridians of the hand, generally speaking.
**Meridians of the Foot**
Above the sacrum is the lumbar region, reached by the Bladder meridian. (The transverse bone below the spinal column is the lumbar region.) Below the lumbar region is the buttock, penetrated by the Bladder branch. Below the Jie Gu on both sides is the Bi Shu (hip joint), crossed by the Gallbladder meridian and passed by the Bladder meridian. (Also called Bi Yan; the Gallbladder meridian enters Bi Yan transversely. The Bladder branch passes Bi Shu.) Anteriorly, below Qijie is Bi Guan, descended directly by the Stomach meridian. The medial thigh has the Spleen meridian anteriorly and the Kidney meridian posteriorly, with the Liver meridian following internally on the thigh yin. The lateral thigh is Bi; the posterior is the Bladder branch and the anterior is the Stomach meridian. (Six cun above the knee anterior to Bi, the muscular prominence is Futu, reached by the Stomach meridian.) The Gallbladder meridian also descends along Bi Yang. (Running laterally along the thigh between the Taiyang and Yangming meridians.) Thus, between the knee tendons lies the Patella (Bin), directly descended by the Stomach meridian. The Spleen meridian is at the medial knee, (medial anterior margin.) the Gallbladder meridian at the lateral knee, (lateral margin.) and the popliteal fossa (Nao) is entered directly by the Bladder branch. The Kidney meridian emerges above the Liver meridian, both on the medial side. (The Kidney meridian emerges at the medial Nao margin; the Liver meridian ascends the medial Nao margin.) The Spleen and Kidney ascend the medial Nao, (Nao refers to the calf; the medial margin above the two gastrocnemius heads.) while the branch penetrates the lateral Nao. (Descending from the middle through the medial Nao, exiting posterior to the lateral malleolus.) The Gallbladder meridian descends anterior to the lateral fibular bone, reaching directly to the end of Juegu. (The fibula is the auxiliary bone; Juegu is above the lateral malleolus.) The Liver meridian slants along the medial tibia, while the Stomach meridian follows the lateral tibia. At the medial malleolus, the Spleen is anterior and the Kidney posterior; at the lateral malleolus, the Gallbladder is anterior and the Bladder posterior. (Flanking the ankle, medial and lateral are called Ankle.) Posterior to the metatarsophalangeal joint of the big toe is the He Gu (nucleus bone), passed by the Spleen meridian. Jing Gu is the bone on the lateral foot, followed by the Bladder branch. The Kidney meridian enters the heel; the Stomach and Gallbladder meridians follow the dorsum of the foot; the lateral margin of the dorsum is the path of the Liver meridian. The sole of the foot sees the Kidney meridian sloping towards Yongquan acupoint. (Yongquan acupoint.) Behind the nail of the big toe is the junction of the Gallbladder branch and Liver meridian. The medial side of the big toe is the connection of the Stomach branch and Spleen meridian. Between the medial and lateral aspects of the middle finger/toe, the direct Stomach meridian and Stomach branch enter separately. Between the fourth toes, the Gallbladder meridian enters directly and terminates. The Bladder branch reaches the lateral side of the little toe; the Kidney meridian originates below the little toe. Such are the meridians of the foot.