条文：手少阴心起极泉，青灵少海灵道全，通里阴□神门下，少府少冲小指边。
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条文：
少阴心起极泉中，腋下筋间动引胸，青灵肘上三寸取，少海肘后端五分，
灵道掌后一寸半，通里腕后一寸同，阴□腕后内半寸，神门掌后锐骨隆，
少府小指本节末，小指内侧取少冲。
注：[1]极泉穴，在腋下臂内筋间动脉引胸中，是其穴也。
[2]从极泉下行至肘，在肘上三寸，伸肘举臂取之，青灵穴也。
[3]从青灵下行肘内廉，节后大，骨外上去肘端五分，肘内横纹头，
屈肘向头取之，少海穴也。
[4]从少海下行掌后一寸五分，灵道穴也。
[5]从灵道下行五分，循腕侧外腕后一寸陷中，通里穴也。
[6]从通里内行五分，掌后脉中腕后五分，阴□穴也。
[7]从阴□行掌后锐骨端陷中，神门穴也。
[8]从神门行手小指本节末，外侧骨缝陷中，少府穴也。
[9]从少府行小指内，中行去爪由角如韭叶，少冲穴也（见图五十二）。
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条文：
经云：小肠者受盛之官，化物出焉。
又云：小肠后附于脊，前附于脐，上左回叠，积十六曲，大二寸半，
径八分分之少半，长三丈二尺。受谷二斗四升，水六升三合合之大半。
又云：小肠上口在脐上二寸近脊，水谷由此而入，复下一寸，外附于脐，
为水分穴，当小肠下口，至是而泌别清浊，水液渗入膀胱，滓秽流入大肠。
又云：是经多血少气。
「难经」曰：小肠重二斤十四两。（见图五十三）
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Translation: The Hand-Shaoyin Heart Meridian originates at Jiquan (HT1), sequentially passing through Qingling (HT2), Shaohai (HT3), Lingdao (HT4), Tongli (HT5), Yinxi (HT6, original text has a missing character "阴□", corrected to Yinxi based on TCM classics), Shenmen (HT7), Shaofu (HT8), and terminates at Shaochong (HT9) at the tip of the little finger.
Translation:
The Hand-Shaoyin Heart Meridian originates at Jiquan (HT1), located between the tendons in the axilla, where the arterial pulse is felt and radiates to the chest; Qingling (HT2) is located three cun above the elbow; Shaohai (HT3) is located five fen posterior to the medial end of the cubital crease;
Lingdao (HT4) is located one and a half cun proximal to the wrist crease; Tongli (HT5) is located one cun proximal to the wrist crease; Yinxi (HT6) is located half a cun proximal to the wrist crease on the ulnar side; Shenmen (HT7) is located in the depression at the radial border of the pisiform bone (ulnar styloid prominence);
Shaofu (HT8) is located at the distal end of the fifth metacarpophalangeal joint; Shaochong (HT9) is located on the ulnar side of the little finger.
Notes: [1] Jiquan (HT1) is located between the tendons on the medial aspect of the upper arm in the axilla, where the arterial pulse is palpable and its qi radiates to the chest; this is the location of the acupoint.
[2] Descending from Jiquan (HT1) to the elbow, Qingling (HT2) is located three cun above the elbow; it is accessed by extending the elbow and raising the arm.
[3] Descending from Qingling (HT2) to the medial margin of the elbow, past the prominent bone, five fen lateral to the end of the elbow, i.e., at the head of the medial cubital crease; it is accessed by flexing the elbow towards the head; this is Shaohai (HT3).
[4] Descending one cun and five fen from Shaohai (HT3), this is Lingdao (HT4).
[5] Descending five fen from Lingdao (HT4), along the lateral side of the wrist in the depression one cun proximal to the wrist crease, this is Tongli (HT5).
[6] Moving five fen medially from Tongli (HT5), in the vessel proximal to the wrist crease by five fen, this is Yinxi (HT6).
[7] From Yinxi (HT6) moving to the depression at the end of the ulnar styloid process (radial border of the pisiform) at the wrist, this is Shenmen (HT7).
[8] From Shenmen (HT7) moving to the distal end of the fifth metacarpophalangeal joint of the hand, in the depression of the lateral interosseous space, this is Shaofu (HT8).
[9] From Shaofu (HT8) moving to the medial side of the little finger, at a distance from the nail corner resembling the width of a leek leaf, this is Shaochong (HT9) (see Figure 52).
Translation:
Medical classics state: The Small Intestine is the official responsible for reception and transformation, separating the clear from the turbid.
It is also stated: The Small Intestine is attached posteriorly to the spine and anteriorly to the umbilicus. It loops upward and to the left, forming sixteen curves. Its diameter is two and a half cun,
and its lumen diameter is eight fen plus one-third of a fen. Its length is three zhang and two chi. It can hold two dou and four sheng of grain, and six sheng, three he, plus more than half a he of water.
It is further stated: The upper opening of the Small Intestine is two cun above the umbilicus, near the spine, where food and drink enter. One cun below this, externally attached to the umbilicus,
is the Shuifen (CV9) acupoint, which corresponds to the lower opening of the Small Intestine. Here, the clear and turbid are separated; fluid seeps into the Bladder, while waste flows into the Large Intestine.
It is also stated: This meridian has abundant blood but scarce qi.
The Nan Jing (Classic of Difficult Issues) states: The Small Intestine weighs two jin and fourteen liang. (See Figure 53)