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Figure of the Hand-Shaoyin Heart Meridian
The Heart meridian originates in the heart, enters the palm, and follows the little finger to connect with the Small Intestine meridian.

The meridian of the Hand-Shaoyin Heart (Shǒu Shàoyīn Xīn Jīng) originates in the heart, emerges to associate with the Heart system (Xīn Xì), descends through the diaphragm, and connects with the Small Intestine. Its branch ascends from the Heart system, flanking the pharynx, and connects with the eyeball (original note: follows the stomach and exits the hypochondrium). The main trunk again rises from the Heart system, enters the lung, descends to emerge from the axilla, and follows the posterior medial aspect of the upper arm, running posterior to the Hand-Taiyin Lung and Hand-Jueyin Pericardium meridians. It descends along the medial edge of the elbow (here is Shaohai [H3]). It follows the posterior medial aspect of the forearm, reaching the end of the pisiform bone at the wrist (here is Shenmen [HT7]). It enters the posterior medial aspect of the palm and follows the medial side of the little finger.

The Hand-Shaoyin Heart meridian has less blood and more qi. When this meridian undergoes pathological changes, symptoms include dryness of the throat, heart pain, thirst with desire to drink, which is termed Bi-Jue (Arm Jue). This meridian governs diseases generated by the Heart, such as yellowing of the eyes, hypochondriac pain, pain along the posterior medial aspect of the arm, and heat in the center of the palm.

Figure of the Hand-Taiyang Small Intestine Meridian
The Small Intestine meridian originates at the tip of the little finger, slants to connect with the eye, and connects with the Bladder meridian.

The meridian of the Hand-Taiyang Small Intestine (Shǒu Tàiyáng Xiǎocháng Jīng) originates at the tip of the little finger (here is Xiaozé [SI1]). It follows the ulnar side of the hand upward to the wrist (here is Wàngǔ [SI4]). Emerging from the ankle joint area straight up, it runs below the styloid process of the ulna (here is Yánggǔ [SI5]). It emerges between the two bones on the medial side of the elbow, ascends along the posterior lateral aspect of the upper arm, emerges from the shoulder joint, circles the scapula, intersects at the shoulder, enters the Supraclavicular Fossa (Quēpén), descends to connect with the heart, follows the esophagus through the diaphragm, reaches the stomach, and belongs to the Small Intestine. Its branch passes through the neck from the Supraclavicular Fossa to the cheek, reaches the outer canthus, and then re-enters the ear. Another branch diverges from the cheek (here is Tiānróng [SI17]), ascends to the nose, reaches the inner canthus, and slants to connect with the zygomatic bone.

The Hand-Taiyang Small Intestine meridian has more blood and less qi. When this meridian undergoes pathological changes, symptoms include sore throat, swelling of the mandible, inability to turn the head, a sensation that the shoulder is being pulled out, and a sensation that the elbow is broken. This meridian governs diseases generated by fluids, such as deafness, yellowing of the eyes, swelling of the cheeks and mandible, and pain along the posterior lateral aspect of the neck, shoulder, elbow, and arm.

Figure of the Foot-Taiyang Bladder Meridian
The Bladder meridian originates at the inner canthus and extends to the lateral side of the little toe to connect with the Kidney meridian.

The meridian of the Foot-Taiyang Bladder (Zú Tàiyáng Pángguāng Jīng) originates at the inner canthus. It ascends to the forehead and intersects at the vertex. Its branch goes from the vertex (Bǎihuì [GV20]) to the upper angle of the ear. The main trunk enters the brain from the vertex, emerges separately, descends down the nape, follows the medial aspect of the shoulder blade, flanks the spine, reaches the middle of the waist, enters deeply to follow the paraspinal muscles, connects with the Kidney, and belongs to the Bladder. Its branch diverges from the middle of the waist, descends to intersect at the anterior and posterior orifices, penetrates downward through the buttocks, and enters the popliteal fossa (here is Wěizhōng [BL40]). Another branch diverges from the medial aspect of the shoulder, descending bilaterally, penetrating the scapula and flanking the spine internally, passing over the hip joint, following the lateral aspect of the thigh, merging with the popliteal fossa from the posterior margin, descending through the calf muscle, emerging behind the lateral malleolus (here is Kūnlún [BL60]). It follows Jīnggǔ to the lateral side of the little toe (here is Zhìyīn [BL67]).

The Foot-Taiyang Bladder meridian has more blood and less qi. When this meridian undergoes pathological changes, symptoms include sudden headache, a sensation that the eyes are protruding, a sensation that the nape is being pulled, back pain, a sensation that the waist is broken, inability to flex the thigh, a sensation that the popliteal fossa is knotted, and a sensation that the calf is tearing, which is termed Huái-Jue (Ankle Jue). This meridian governs diseases generated by sinews, such as hemorrhoids, malaria, mania, epilepsy, pain in the vertex, nape, and neck, yellowing of the eyes with tearing, nasal congestion or epistaxis, pain in the nape, back, waist, sacrum, and feet, and dysfunction of the little toe.