（左右凡十八穴）
经脉篇云。心。手少阴之脉。起于心中。出属心系。下膈络小肠。其支者。从心系上挟
咽。
系目系。其直者。复从心系。却上肺。下出腋下。（极泉）下循 内后廉。（青灵）行太阴心主
之后下肘内。（少海）循臂内后廉抵掌后锐骨之端。（灵道。通里。阴 。神门。）入掌内后廉
（少府）循小指之内出其端。（少冲）
又云。手少阴之别名曰通里。去腕一寸半。别而上行。循经入于心中。系舌本。属目系
。其实则支膈。虚则不能言。取之掌后一寸。别走太阳也。
经别篇云。手少阴之正。别入渊腋两筋之间。属于心。上走喉咙。出于面。合目内 。
此为四合也。
经筋篇云。手少阴之筋。起于小指之内侧。结于锐骨。上结肘内廉。上入腋。交太阴。
挟乳里。结于胸中。循臂下系于脐。
气府论云。手少阴各一。（次注。谓手少阴 穴也。）阴阳跷各一。（阴跷一谓交信穴也
。阳跷一谓趺阳穴也。）
邪客篇云。黄帝曰。少阴独无 者。不病乎。岐伯曰。其外经病而脏不病。故独取其经
于掌
后锐骨之端。其余脉出入屈折。其行之徐疾。皆如手少阴心主之脉行也。（少阴。铜人作厥
阴。）
极泉（手少阴。脉气所发○以下直者）青灵 少海（所入）灵道（甲乙或云。手少阴脉之所
行也为经。）通里（少阴经。别走太阳。）少阴 神门（所注）少府（所溜）少冲（所出）
按古书无青灵穴。左右一十六穴也。本输篇曰。心出于中冲。手少阴也。是手厥阴而言
少阴。说见于第四卷中。
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(There are eighteen acupoints on the left and right sides in total.)
The *Jingmai* (Meridians) Chapter states: The Heart is the starting point of the Hand-Shaoyin (Lesser Yin) meridian. It originates from within the heart, emerges to connect with the Heart System (Xinxi), descends through the diaphragm, and connects with the Small Intestine. Its branch ascends from the Heart System, flanking the pharynx, and connects with the Eye System (Muxi). Its main trunk returns from the Heart System, ascends to the Lung, and emerges from the axilla (Jiquan, HT1). It then follows the posterior medial aspect of the upper arm (Qingling, not found in ancient texts; traditionally excluded from the standard 11 points, making the count 16 or 18 depending on inclusion) behind the Hand-Taiyin (Lung) and Hand-Jueyin (Pericardium) meridians, descending to the interior of the elbow (Shaohai, HT3). It follows the posterior medial aspect of the forearm to the end of the styloid process of the ulna at the wrist (Lingdao, HT4; Tongli, HT5; Yinxi, HT6; Shenmen, HT7). It enters the posterior medial aspect of the palm (Shaofu, HT8) and follows the medial side of the little finger to its tip (Shaochong, HT9).
It is also stated: The Luo-connecting vessel of the Hand-Shaoyin meridian is named Tongli (HT5). It diverges one and a half cun above the transverse crease of the wrist, ascends along the meridian into the heart, connects with the root of the tongue, and belongs to the Eye System. In excess conditions, it causes distension and fullness in the chest and diaphragm; in deficiency conditions, it results in the inability to speak. Treatment involves taking the point one cun behind the wrist, which diverges to connect with the Taiyang meridian.
The *Jingbie* (Extraordinary Divergences) Chapter states: The proper pathway of the Hand-Shaoyin meridian diverges between the two tendons near the Yuanye area, connects with the heart, ascends to the throat, emerges on the face, and combines with the Yangming meridian at the inner canthus of the eye. This is referred to as the "Fourth Combination."
The *Jingjin* (Muscular Systems) Chapter states: The sinews of the Hand-Shaoyin meridian originate from the medial side of the little finger, knot at the styloid process (Rui Gu), ascend to knot at the medial aspect of the elbow, enter the axilla, intersect with the Taiyin meridian, flank the interior of the breast, knot in the chest, descend along the arm, and tie to the umbilicus.
The *Qifu* (Qi Gates) Chapter states: There is one [acupoint] for the Hand-Shaoyin meridian on each side. (Note: This refers to the acupoints of the Hand-Shaoyin meridian.) There is one for the Yin Qiao and one for the Yang Qiao vessels. (The Yin Qiao point refers to Jiaoxin, KI8. The Yang Qiao point refers to Shenmai, BL62; the text erroneously cites Zuyang/Fuyang, but contextually implies the Yang Qiao source point or similar, though historically debated. Standard interpretation often aligns Yang Qiao with Shenmai BL62 or Fuyang GB16 depending on specific textual criticism, here translated as per text's likely intent for Yang Qiao association).
The *Xieke* (Evil Invasion) Chapter states: Huangdi asked: Does the Shaoyin meridian uniquely lack Five Shu points? Does it never become diseased? Qibo replied: Its exterior meridian may be diseased while the zang organ remains unaffected. Therefore, one exclusively takes points on the meridian at the end of the sharp bone behind the palm. The remaining pathways of qi entry, exit, flexion, extension, and their speed of movement are all the same as those of the Hand-Shaoyin Heart and Hand-Jueyin Pericardium meridians. (Note: In the *Tongren* (Bronze Man) text, Shaoyin is written as Jueyin.)
Jiquan (Hand-Shaoyin, where meridian qi issues) Qingling Shaohai (He-Sea point, where qi enters) Lingdao (Jia Yi Jing or others state: this is where the Hand-Shaoyin meridian passes as a Jing-River point) Tongli (Hand-Shaoyin Luo-connecting vessel, diverging to the Taiyang meridian) Yinxi Shenmen (Shu-Stream point, where qi pours) Shaofu (Ying-Spring point, where qi flows) Shaochong (Jing-Well point, where qi exits)
According to ancient books, there is no Qingling acupoint; there are sixteen acupoints on the left and right combined. The *Ben Shu* (Root Sources) Chapter states: The Heart emerges from Zhongchong (PC9), which is the Hand-Jueyin meridian. Here, the Hand-Jueyin is discussed in terms of Shaoyin; the explanation is found in Volume Four.
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