手之三阳手外头，手之三阴胸内手，足之三阳头外足，足之三阴足内走。
【注】手之三阳手外头者，谓手阳明大肠经，从手次指内侧之端，上行手臂外之上行（音杭），至头鼻孔两旁也；
手少阳三焦经，从手四指外侧之端，上行手臂外之中行，至头耳前动脉也；手太阳小肠经，从手小指外侧之端，上行手
臂外之下行，至头耳中珠子也。手之三阴胸内手者，谓手太阴肺经，从胸乳上循行 内，下行肘臂内之上行，至手大指
内侧之端也；手厥阴心包络经，从腋下乳外，循行 内，下行肘臂内之中行，至手中指之端也，手少阴心经，从腋筋间
循行 外，下行肘臂内之下行，至手小指内侧之端也。足之三阳头外足者，谓足阳明胃经，从头目下循颊颈乳中，下行
腹外股膝跗之前行，至足二指之端也；足少阳胆经，从头目外 ，循行绕耳颅巅，下行胁跨膝跗之中行，至足四指外侧
之端也；足太阳膀胱经，从头目内 ，循行额巅项背，外行臀 踝之后行，至足小指外侧之端也。足之三阴足内走者，
谓足厥阴肝经，从足大趾外侧之端，循行前行上内踝，上 ，膝之中行，内行阴器腹胁之外行，上至乳下也；足太阴
脾经，从足大趾内侧之端，循内联踝膝里股内之中行，上行腹中至季胁也；足少阴肾经，从足心循内联踝足跟内侧之后
行，上腹内至胸也。诸阳行外，诸阴行里，四肢背腹皆如此也。
手部的三条阳经循行于手臂外侧并到达头部，手部的三条阴经循行于胸部内侧并到达手部。足部的三条阳经循行于头部外侧并到达足部，足部的三条阴经从足部内侧向上行走。
【注释】所谓“手部的三条阳经循行于手臂外侧并到达头部”，是指：手阳明大肠经（Hand Yangming Large Intestine Meridian），从手食指内侧端开始，沿手臂外侧上部上行至头部鼻孔两旁；手少阳三焦经（Hand Shaoyang Sanjiao Meridian），从手无名指外侧端开始，沿手臂外侧中部上行至头部耳前动脉处；手太阳小肠经（Hand Taiyang Small Intestine Meridian），从手小指外侧端开始，沿手臂外侧下部上行至头部耳中。
所谓“手部的三条阴经循行于胸部内侧并到达手部”，是指：手太阴肺经（Hand Taiyin Lung Meridian），从胸部乳上沿内侧下行至肘臂内侧上部，到达手拇指内侧端；手厥阴心包络经（Hand Jueyin Pericardium Meridian），从腋下乳外沿内侧下行至肘臂内侧中部，到达手中指端；手少阴心经（Hand Shaoyin Heart Meridian），从腋筋间沿内侧下行至肘臂内侧下部，到达手小指内侧端。
所谓“足部的三条阳经循行于头部外侧并到达足部”，是指：足阳明胃经（Foot Yangming Stomach Meridian），从头部目下沿面颊颈部至乳中，沿腹部外侧、大腿、膝盖、足背前方下行，到达足第二趾端；足少阳胆经（Foot Shaoyang Gallbladder Meridian），从头部目外眦沿耳前绕至头顶，沿胁肋、胯部、膝盖、足背中部下行，到达足第四趾外侧端；足太阳膀胱经（Foot Taiyang Bladder Meridian），从头部目内眦沿额部、头顶、项部、背部下行，沿臀部、踝关节后方下行，到达足小指外侧端。
所谓“足部的三条阴经从足部内侧向上行走”，是指：足厥阴肝经（Foot Jueyin Liver Meridian），从足大趾外侧端开始，沿前行走至内踝上方，沿膝部内侧上行，经过阴器、腹部侧面至乳下；足太阴脾经（Foot Taiyin Spleen Meridian），从足大趾内侧端开始，沿内踝、小腿内侧、大腿内侧上行至腹部中部及季胁；足少阴肾经（Foot Shaoyin Kidney Meridian），从足心开始，沿内踝、足跟内侧后方上行至腹部内侧直至胸部。
所有阳经均循行于体表外侧，所有阴经均循行于体内侧，四肢、背部和腹部的循行规律皆如此。
The three Hand-Yang meridians run along the lateral aspect of the arms and reach the head; the three Hand-Yin meridians run along the medial aspect of the chest and reach the hands. The three Foot-Yang meridians run from the lateral aspect of the head to the feet; the three Foot-Yin meridians ascend from the medial aspect of the feet.
[Note] "The three Hand-Yang meridians run along the lateral aspect of the arms and reach the head" refers to: The Hand-Yangming Large Intestine Meridian (Shou Yangming Dachang Jing) starts from the medial end of the index finger, ascends along the upper part of the lateral aspect of the arm, and reaches the sides of the nostrils on the head; The Hand-Shaoyang Sanjiao Meridian (Shou Shaoyang Sanjiao Jing) starts from the lateral end of the ring finger, ascends along the middle part of the lateral aspect of the arm, and reaches the artery in front of the ear on the head; The Hand-Taiyang Small Intestine Meridian (Shou Taiyang Xiaochang Jing) starts from the lateral end of the little finger, ascends along the lower part of the lateral aspect of the arm, and reaches the center of the ear on the head.
"The three Hand-Yin meridians run along the medial aspect of the chest and reach the hands" refers to: The Hand-Taiyin Lung Meridian (Shou Taiyin Fei Jing) runs from the upper chest near the breast along the medial aspect, descends to the upper part of the medial aspect of the elbow and arm, and reaches the medial end of the thumb; The Hand-Jueyin Pericardium Meridian (Shou Juexin Baojing) runs from outside the armpit and breast along the medial aspect, descends to the middle part of the medial aspect of the elbow and arm, and reaches the tip of the middle finger; The Hand-Shaoyin Heart Meridian (Shou Shaoyin Xin Jing) runs from between the tendons of the armpit along the medial aspect, descends to the lower part of the medial aspect of the elbow and arm, and reaches the medial end of the little finger.
"The three Foot-Yang meridians run from the lateral aspect of the head to the feet" refers to: The Foot-Yangming Stomach Meridian (Zu Yangming Weijing) runs from below the eyes, along the cheek and neck to the midline of the breast, descends along the lateral abdomen, thigh, knee, and anterior dorsum of the foot, reaching the tip of the second toe; The Foot-Shaoyang Gallbladder Meridian (Zu Shaoyang Danjing) runs from the lateral canthus of the eye, winds around the ear to the vertex, descends along the hypochondrium, hip, knee, and middle dorsum of the foot, reaching the lateral tip of the fourth toe; The Foot-Taiyang Bladder Meridian (Zu Taiyang Pangguang Jing) runs from the medial canthus of the eye, along the forehead, vertex, nape, and back, descends along the posterior aspect of the buttock and ankle, reaching the lateral tip of the little toe.
"The three Foot-Yin meridians ascend from the medial aspect of the feet" refers to: The Foot-Jueyin Liver Meridian (Zu Jueyin Ganjing) starts from the lateral end of the big toe, ascends along the anterior aspect to above the medial malleolus, then along the middle of the knee, passes through the genitalia and lateral abdomen/flank, ascending to below the breast; The Foot-Taiyin Spleen Meridian (Zu Taiyin Pijing) starts from the medial end of the big toe, ascends along the medial malleolus, popliteal fossa, and medial thigh, reaching the middle of the abdomen and costal margin; The Foot-Shaoyin Kidney Meridian (Zu Shaoyin Shensheng) starts from the sole of the foot, ascends along the medial malleolus and medial heel, reaching the interior of the abdomen and chest.
All Yang meridians run on the exterior/lateral aspects, and all Yin meridians run on the interior/medial aspects; this pattern applies to the limbs, back, and abdomen alike.