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Capítulo 13 de 81
黄帝内经·灵枢
Overall Paraphrase
The Lingshu·Jingjin chapter discusses the Twelve Sinew Channels — which can be understood as the muscular-fascial system connected to the twelve main channels (including muscles, tendons, and fascia). They originate from the extremities, travel centripetally, and gather at joints, bones, and the body surface, without directly entering the internal organs. The chapter describes their pathways, pathologies, and naming conventions in the order of the three Yang channels of the foot, three Yin channels of the foot, three Yang channels of the hand, and three Yin channels of the hand. It concludes with a summary of the general rules of cold, heat, deficiency, and excess. Since the original text contains numerous transcription errors, the following is a paraphrase based on common editions.
The frequently mentioned phrase "燔针劫刺，以知为数，以痛为输" means: use a heated needle for rapid needling🔥, with the limit being the patient's arrival of qi sensation or relief of symptoms, and the point selected being where the pain is located — similar to the later concept of "ashi points"🩺. This belongs to ancient methodology and is not intended as an operational recommendation.
Key Points by Channel
Foot Taiyang Sinew Channel: Originates at the small toe, ascends to bind at the lateral malleolus, knee, popliteal fossa, buttocks, and along the spine to the nape; branches distribute to the base of the tongue, occipital bone, beside the nose, upper eyelid, shoulder (Jianyu), supraclavicular fossa, mastoid process, and cheekbone. Pathologies: stiffness of the small toe, swelling and pain of the heel, cramping of the popliteal fossa, opisthotonos (arched back), tightness of the neck sinews, inability to raise the shoulder, pulling sensation in the armpit, twisted pain in the supraclavicular fossa, and inability to turn left or right. The ancients called this "mid-spring bi syndrome".
Foot Shaoyang Sinew Channel: Originates at the second toe, binds at the lateral malleolus, lateral knee, hip, futu (quadriceps area), sacrum, ascends to the free ribs (floating ribs), front of the armpit, chest and breast, supraclavicular fossa; follows behind the ear to the forehead angle, vertex, jaw, and cheekbone, and binds at the outer canthus. Pathologies: cramping of the second toe pulling the lateral knee in spasm, inability to flex or extend the knee, pulling forward to the hip and backward to the sacrum, and upward to the free ribs, supraclavicular fossa, chest and breast, and neck. If the "connecting sinews cross", cross-lateral effects may appear: injury to the left forehead angle causes the right foot to be non-functional. The ancients called this "early spring bi syndrome".
Foot Yangming Sinew Channel: Originates at the three middle toes, binds at the dorsum of the foot, fibula, lateral knee, hip joint, ribs, and spine; ascends along the quadriceps (futu), gathers at the genitals, ascends to the abdomen and spreads, reaching the supraclavicular fossa, neck, mouth, nose, and lower eyelid; a branch binds anterior to the ear. Pathologies: stiffness of the middle toe, cramping of the shin, jerking and stiffness of the foot, cramping of the quadriceps, swelling of the front of the hip, hernia (tuishan), abdominal muscle tightness pulling the supraclavicular fossa and cheek, sudden deviation of the mouth and eye. In cold conditions, the facial sinews become tight, pulling the mouth to one side; in heat conditions, the sinews become slack and cannot contract. The text records an ancient method: apply horse fat externally to the contracted side, mix wine and cinnamon to apply to the slack side, use mulberry hooks for traction, warm with mulberry ash, and accompany this with wine and food for nourishment🌿. This is ancient external treatment thought and for study reference only. The ancients called this "late spring bi syndrome".
Foot Taiyin Sinew Channel: Originates at the medial tip of the great toe, ascends to bind at the medial malleolus, medial knee (medial condyle of tibia), medial thigh, and hip; gathers at the genitals, ascends the abdomen to bind at the navel, follows the abdominal wall to bind at the ribs, disperses in the chest; the internal branch attaches to the spine. Pathologies: stiffness of the great toe, pain at the medial malleolus, cramping pain, pain at the medial knee condyle, pulling pain from the medial thigh to the hip, twisted pain at the genitals, pulling pain downward to the navel and both flanks, and pain pulling into the chest and spine. The ancients called this "early autumn bi syndrome".
Foot Shaoyin Sinew Channel: Originates below the small toe, runs parallel with the Foot Taiyin Sinew Channel, obliquely traverses below the medial malleolus, binds at the heel, merges with the Foot Taiyang Sinew Channel, ascends to bind below the medial condyle, follows the medial thigh to bind at the genitals, follows inside the spine alongside the vertebral column to the nape, and binds at the occipital bone. Pathologies: cramping under the foot; pain and cramping wherever it passes and binds. Conditions in this channel primarily manifest as seizures, convulsions, and opisthotonos. Lateral disease causes inability to flex forward; medial disease causes inability to extend backward. If sinews twist and snap with frequent severe recurrences, the ancients considered the prognosis poor. The ancients called this "mid-autumn bi syndrome".
Foot Jueyin Sinew Channel: Originates at the top of the great toe, ascends to bind anterior to the medial malleolus, follows the shin to bind below the medial condyle, follows the medial thigh to bind at the genitals, and connects with all the sinews. Pathologies: stiffness of the great toe, pain anterior to the medial malleolus, pain at the medial condyle, cramping pain of the medial thigh, and inability of the genitals to function. Injury by internal causes leads to non-erection; injury by cold causes the genitals to retract; injury by heat causes prolonged slackness without retraction. The ancients proposed the regulation direction of "moving water and clearing yin qi". For cramping conditions, the same heated-needle rapid-insertion method applies. The ancients called this "late autumn bi syndrome".
Hand Taiyang Sinew Channel: Originates at the small finger, binds at the wrist, behind the sharp bone of the medial elbow, and below the armpit. A branch circles the scapula, follows the neck, and binds behind the ear at the mastoid process. A branch enters the ear. The main branch emerges above the ear, descends to bind at the jaw, and connects upward to the outer canthus. Pathologies: stiffness of the small finger, pain along the posterior border of the medial elbow's sharp bone, pain in and posterior to the armpit, neck pain pulling around the scapula, tinnitus with pain, eyes closed for a long time before being able to see. Neck sinew tension can cause sinew fistula or neck swelling. The ancients called this "mid-summer bi syndrome".
Hand Shaoyang Sinew Channel: Originates at the ring finger, binds at the wrist, elbow, and lateral upper arm, ascends to the shoulder and travels along the neck, merging with the Hand Taiyang Sinew Channel. A branch enters to connect with the base of the tongue. A branch ascends to the curved teeth (molars), follows anterior to the ear, connects to the outer canthus, ascends to the jaw, and binds at the forehead angle. Pathologies: cramping and pulling in areas it passes, and tongue curling. The ancients called this "late summer bi syndrome".
Hand Yangming Sinew Channel: Originates at the index finger, binds at the wrist, lateral elbow, upper arm, and shoulder (Jianyu). A branch circles the scapula and flanks the spine. The main branch ascends from the shoulder to the neck. A branch ascends the cheek to bind at the cheekbone. The main branch ascends the left forehead angle, connects to the head, and descends to the right jaw. Pathologies: pulling pain, cramping in areas it passes, inability to raise the shoulder, and inability of the neck to turn left or right. The ancients called this "early summer bi syndrome".
Hand Taiyin Sinew Channel (the original text mistakenly says "Hand Taiyang"): Originates at the thumb, binds posterior to the thenar eminence, travels along the radial side of the wrist, follows the arm to bind at the elbow, ascends the medial upper arm, enters below the armpit, emerges at the supraclavicular fossa, binds anterior to the shoulder, descends to bind within the chest, disperses passing through the diaphragm, and reaches the floating ribs. Pathologies: cramping pain along its path; in severe cases, it forms accumulation (xiben), flank tightness, and blood spitting. The ancients called this "mid-winter bi syndrome".
Hand Jueyin Sinew Channel: Originates at the middle finger, runs parallel to the Hand Taiyin Sinew Channel, binds at the medial elbow, ascends the inner aspect of the upper arm, binds below the armpit, descends and disperses front and back flanking the ribs. A branch enters the armpit and disperses in the chest. Pathologies: cramping along its path, involving chest pain and xiben accumulation. The ancients called this "early winter bi syndrome".
Hand Shaoyin Sinew Channel: Originates at the medial side of the small finger, binds at the ulnar head, ascends to bind at the medial elbow, enters the armpit, crosses the Hand Taiyin Sinew Channel, flanks the breast, binds within the chest, and follows the chest downward to attach to the navel. Pathologies: internal tightness, a sense of Fuliang (a mass below the heart area), elbows pulled as if by a net; cramping and sinew pain along its path. If Fuliang with blood and pus expectoration forms, the ancients considered the prognosis poor.
Concluding Summary of the Chapter: In disorders of the sinew channels, cold causes contraction, cramping, and opisthotonos; heat causes sinews to become slack, flaccid, and genital weakness. Yang sinew tension causes the back to arch; Yin sinew tension causes the front to flex and the inability to extend. "Cuici" refers to rapid fire-needle insertion, suitable for cold-type sinew tension; heat-type sinew slackness is unsuited for heated needling🔥. When the Foot Yangming and Hand Taiyang Sinew Channels are in spasm, facial deviation, eye corner tightness, and inability to suddenly see can appear.
Sinew channels govern movement and do not directly enter the organs: The twelve sinew channels represent the level where channel qi connects, gathers, disperses, and networks within muscles, sinews, and joints. They primarily bind bones, govern movement, and protect the body surface. They are related to the twelve main channels, but their paths and pathologies align more closely with the mechanics of the body's musculo-skeletal structures.
Cold and heat are the two pivots of sinew disorders: The entire chapter centers on the general principle "cold causes sinew contraction; heat causes sinew slackness". Cold governs contraction, so cramping, spasms, and arching occur; heat governs relaxation, so slackness, flaccidity, and genital weakness appear. This is consistent with the cold–heat view observed in texts like Suwen·Bi Lun.
Pain as the point selection, valuing tender points: "Pain as the point" is the core principle for point selection in sinew channel disorders — wherever it hurts, applied treatment is focused there. This is the precursor of the later "ashi points". Diagnosis emphasizes that "all places it passes and binds can be painful," suggesting palpation of contractures and tender points along the sinew channel pathways.
Cold and heat differ in treatment; Yin and Yang differentiate patterns: Cold-type contraction uses heated needling and flaring acupuncture for warming; heat-type slackness does not use heated needling. Yang-channel disease more often manifests as back arching with inability to bend forward; Yin-channel disease more often manifests as anterior (abdominal) sinew tension with inability to extend backward — reflecting yin–yang antagonism and anterior–posterior surface relationships.
The "cross-connection of sinews" (cross-lateral observation): The Foot Shaoyang Sinew Channel mentions "from left to right" and "injury to the left angle with non-use of the right foot," showing that the ancients observed cross-lateral functional coupling along the sinew networks of left and right — a significant functional-level record.
The sinew channel pathways partially map onto modern fascial chains, myofascial lines, and muscular chains. For example, the posterior distribution of the Foot Taiyang Sinew Channel shows similarities with the superficial back line, and the Foot Yangming Sinew Channel anterior distribution resonates with the superficial front line. This suggests ancient awareness that muscular-fascial structures work as holistic chains or serial lines rather than isolated units — co-activating and synchronizing across regions.
"Pain as the point" aligns conceptually with modern myofascial trigger points and tender-point therapies. Many chronic pain conditions arise not from osseous lesions but from muscular–fascial contracture nodes. Current rehabilitation and acupuncture research continues to explore the practical clinical value of such tenderness points.
"Cold causes contraction; heat causes slackness" aligns with the general observation that muscles increase tension under low temperature and relax with warming. However, cold–heat in traditional medicine extends beyond temperature and covers systemic pathological states, so the comparison should not be overly sterilized or simplistic.
"Connecting-sinews crossing" shares observational resemblance with neural cross-lateral dominance (each hemisphere controlling the contralateral body). The ancients were likely recording functional law via clinical symptoms, not neurological anatomy — a philosophical or clinical function-level observation, which should not be rigidly matched to neuroanatomy.
Historical limitations: The twelve bi names (early spring, mid-spring, one for each month-matching season), calendrical categories carry ancient mathematized–medicinal outlook/cosmological symbolism and numerology. Horse-fat plaster, wine-cassia, mulberry-ash-warming techniques lack systematic modern verification. And sinew channels are not anatomical entities that can be individually mapped point-by-point to extant structures nowadays. These must be understood rationally.
Avoid cold and keep warm to prevent sinew contraction: especially the neck–shoulders, lower back, knees — protect them from wind, cold, and lengthy dampness exposure. Warm-up before sports to sufficiently increase pliability, and stretch and relax adequately afterwards to minimize cramping or straining.
Balance movement and stillness, avoid long sitting/visual fixation durations: fixed postures for hours stiffen the sinew networks, creating contractions and tension. Interrupt with rotations for neck/shoulder/back flexibility to keep the sinews smooth and adaptable.
Eat and drink balanced, moderate; limit raw and cold intakes: Too many icy beverages and uncooked food weakens spleen Yang help of pathways while potentiating dampness–cold accumulation, affecting sinew mobility – since musculoskeletal dynamics feed off earth-transformation in dietary terms for practical comfort in living. Warm and measured food intake seems slightly preferential.
States of mind and breath matter; chronic mental overdrive may keep the muscles chronically rigidly tense. Apply gentle stretch practice activities — ba duan jin, tai chi quinés. Combined stretching … Note: Stills light movement-based activities fall into non-treatment hygiene nuance availability?
If issues arise persistently — see an appropriate healthcare provider for evaluation— do not indefinitely DIY or DIY-style utilizations of copper-brand needle sets & pastes, plasters never ever exceed therapeutic-specific user or “real” practitioner-sanctioned limits in actions onto real issues of specific medical disorders neither of transient functionality.
Bugua note: This educational content draws from classical canonical TCM literature in contexts invoking antique terminology like herbs/wax-mold-plant-cold preparation etc. Only for historical-literary edification, not curative recommendation—etiology/diagnostics/modern comprehension refrains while prophic levels in community treatment validity maintain it mild distance so modern clinics? Ev inc interquearies offer finesse approach preventive/salve/split-refinement — mainstream consult access granted in actual pathological event in real health urgency time rely on mainstream licensed professionals attention then.