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The Hand-Shaoyin Heart Meridian consists of nine acupoints. They are arranged in sequence from Jiquan (HT1), Qingling (HT8) to Shaohai (HT3). Extending from Lingdao (HT4) and Tongli (HT5), it passes through Yinxi (HT6) and Shenmen (HT5), reaches Shaofu (HT8), and finally locates Shaochong (HT9).

The Hand-Shaoyin Heart Meridian originates at Jiquan (HT1), located between the tendons in the axilla, where the artery enters the chest. (The arterial pulse in the tendon space under the arm on the medial side enters the chest). Qingling (HT8) is located three cun above the elbow. Shaohai (HT3) is contained five fen posterior to the elbow. (Located laterally to the large bone posterior to the medial aspect of the elbow joint, five fen from the elbow end; obtained by flexing the elbow towards the head). Lingdao (HT4) is one and a half cun distal to the wrist crease. Tongli (HT5) is one cun distal to the wrist crease. Yinxi (HT6) is half a cun distal to the wrist crease. Shenmen (HT7) is located at the prominence of the duigu bone (pisiform bone) distal to the palm. Shaofu (HT8) is directly opposite Laogong (PC8) posterior to the joint; Shaochong (HT9) is taken on the medial side of the little finger. (These nine acupoints amount to eighteen points on both sides).

The Small Intestine Meridian is the Hand-Taiyang meridian. It originates at the tip of the little finger, follows the lateral side of the hand, ascends past the wrist, emerges from the medial malleolus-like structure (ulnar styloid process area), goes straight up along the lower border of the forearm bone, emerges between the two tendons on the medial side of the elbow, ascends along the posterior-lateral border of the upper arm, emerges from the shoulder joint (jianjie), winds around the scapula, crosses the shoulders, enters the supraclavicular fossa (quepen), connects with the Heart, follows the pharynx down through the diaphragm, reaches the Stomach, and belongs to the Small Intestine. Its branch arises from the supraclavicular fossa, follows the neck up to the cheek, reaches the outer canthus of the eye, then re-enters the ear. Another branch separates from the cheek, ascends to the zygomatic bone, reaches the nose, arrives at the inner canthus of the eye, and obliquely connects to the zygomatic bone. When this meridian is disturbed, diseases manifest as sore throat and submandibular swelling, inability to look back, shoulder pain as if being pulled out, and arm/shoulder pain as if broken. This meridian primarily governs diseases related to fluids (ye), such as deafness, yellow eyes, swollen cheeks, and pain along the posterior-lateral border of the neck, jaw, shoulder, elbow, and arm. For these conditions, excess patterns are treated with draining methods, deficiency patterns with tonifying methods, heat patterns with rapid needle manipulation, cold patterns with retained needle retention, sunken pulses with moxibustion, and neither-excess-nor-deficiency patterns by treating the affected meridian itself. In excess cases, the Renying pulse is twice as large as the Cunkou pulse; in deficiency cases, it is smaller than the Cunkou pulse. ("Jia" refers to scapula, "Jue" refers to digging/breaking sound, "Zhe" rhymes with she).

The end of the arm bone is the wrist; below the wrist, the pisiform bone is called 'huai'; beside the spine are the 'lü' muscles; the two corners above the lü are the 'jianjie' (shoulder joint); below the jianjie, the flat bones form the scapula ('jianjia'). The outer corner of the eye is the acute canthus ('ruizi'); below the eye is the 'bi'; the inner corner of the eye is the inner canthus ('neibi'). The Hand-Taiyang Small Intestine Meridian begins at the Shaose point (SI1) at the tip of the little finger, receiving qi and blood transmission from the Hand-Shaoyin Heart Meridian. From there, it follows the lateral side through Qian Gu (SI2) and Hou Xi (SI3), ascends past the wrist and huai, passing through Wanggu (SI4), Yanggu (SI5), and Yanglao (SI6). It goes straight up along the lower border of the forearm bone through Zhengzhen (SI7), emerges between the two tendons on the medial side of the elbow at Xiaohai (SI8), ascends along the posterior-lateral border of the upper arm, running outside the Hand-Yangming and Hand-Shaoyang meridians. It ascends the shoulder through Jianzhen (SI9), Tianzong (SI11), Bingfeng (SI12), Quyuan (SI13), Jianwai Shu (SI14), and Jianzhong Shu (SI15). It then meets at Dazhui (GV14), crossing left and right above the shoulders. From the crossed shoulders, it enters the supraclavicular fossa (Quepen), descends along the shoulder towards the axilla, reaching the level of Danzhong (CV17), connecting with the Heart. It follows the stomach system down through the diaphragm, passes the upper wrist, reaches the Stomach, and descends outside the Conception Vessel (Renmai), belonging to the Small Intestine at the level two cun above the umbilicus. Its branch arises from the supraclavicular fossa, follows the Tianchuang (SI16) and Tianrong (SI17) points of the neck, ascends to the cheek and zygoma, reaches the outer canthus, passes Tongziliao (GB1), and re-enters the ear, ending at Tinggong (SI19). Another branch separates, follows the cheek up to the bi, reaches the nose, arrives at the Jingming point (BL1) in the inner canthus, and obliquely connects to the zygoma, intersecting with the Foot-Taiyang Bladder Meridian. Disturbance of this meridian causes sore throat and submandibular swelling, indicating that pathological qi affects tangible structures, hence described as "as if pulled" or "as if broken," all describing the result of rebellious qi. The Small Intestine is the official of reception and transformation, refining the essence of water and grain, thus governing fluids. Diseases generated by the Small Intestine, such as deafness, yellow eyes, swollen cheeks, and neck/arm/elbow pain, occur in the areas traversed by its meridian. Shang Yu Gong stated: Zang and Fu organs match in yin-yang and are transformed by the Five Elements. Therefore, the Zang organs store essence, aligning with the Five Elements; the Fu organs manifest diseases through the blood, qi, fluids, sinews, and bones generated by the six Fu organs. Disease arises when the qi governed by the organ is insufficient, leading to pathology originating externally.