（掌后下廉之踝骨，神门穴分也〔腕附〕）属手少阴心经（《灵枢》曰∶手少阴之脉，循
臂内后廉，抵掌后锐骨之端。《素问》曰∶中部人，手少阴之经
也，以候心。注∶心脉在掌后锐骨之端，神门之分，动应于手。《灵枢》又曰∶诸邪之在于心者，皆在心之包
络。包络者，心主之脉也，故独无 焉。其外经病而脏不病，故独取其经于掌后锐骨之端。沈承之曰∶禄按外
经者，手厥阴心包经也。脏不病，谓心脏不可病。如少阴、厥阴心痛，引喉身热，死不可治之类，非谓心不病
也。《难经》曰∶假令得心脉，其外证面赤，口干，善笑，其病烦心，心痛，掌中热而 。有是者，心也；无
是者，非也。此数症，皆手厥阴经是动所生病，而《难经》置之手少阴经者，正谓心主不可病，其病皆外经之
意也。独谓少阴无 者，未详其义。盖五脏者有 ，心即锐骨神门二穴是也，今曰∶无 ，不知何谓？姑阙疑
以俟。顾英白曰∶伟按《甲乙经》云，少阴八穴，其七有治，一无治者，邪弗能容也，故曰∶无 焉。《经》
文心主无 之说，大意止如是耳。前贤岂未见及此耶？外经者，心脏之经络也，脏则在内，经则在外。大凡经
络有病，针灸皆得以治之。若至真脏受病，则皆为不可治之证，非独心经然也。心包心主，本无二脏，彼以厥
阴为少阴之外经者，乖谬殊甚）。又属手太阳小肠经之会（《灵枢》曰∶手太阳之脉，循手外侧，上腕出踝中）。
（位于手掌后方下侧边缘的踝状骨，是神门穴所在的部位〔腕部附属〕）。此处归属于手少阴心经（《灵枢》记载：手少阴心经的经脉，沿着手臂内侧后缘下行，到达手掌后方锐骨的末端。《素问》记载：中部的人迎脉候诊部位中，手少阴经对应心脏。注释：心脉位于手掌后方锐骨的末端，即神门穴的分野，搏动应手可察。《灵枢》又记载：凡是邪气侵犯心脏的，都在于心的包络。包络，就是心主的经脉，所以唯独没有腧穴。如果是外经发病而内脏未病，所以唯独取该经在手掌后方锐骨末端的穴位。沈承之认为：我按语指出，所谓“外经”，指的是手厥阴心包经。所谓“脏不病”，是指心脏本身不会生病。例如少阴、厥阴心痛，牵引咽喉、身体发热，这种死证无法治疗的情况，并不是说心脏不生病。《难经》记载：假如诊得心脉，其外在证候为面色红赤、口干、喜欢笑，其病症为心烦、心痛、掌心发热且伴有疼痛。有这些症状的，是心病；没有这些症状的，就不是心病。这几类症状，都是手厥阴经发生变动所导致的疾病，而《难经》将其归入手少阴经的原因，正是强调心主不可生病，其病变皆在外经的意思。唯独说少阴经没有腧穴，我不清楚其中的含义。大概五脏都有腧穴，心脏对应的即是锐骨处的神门两穴，现在却说没有腧穴，不知道是什么意思？暂且存疑以等待考证。顾英白说：我按语指出，《甲乙经》记载，手少阴经共有八个穴位，其中七个有治疗作用，一个无治疗作用的，是因为邪气不能容纳于此处，所以说“没有腧穴”。《内经》中心主无腧穴的说法，大意大致如此罢了。前代贤人难道没有考虑到这一点吗？所谓外经，是指心脏的经络，脏在内，经在外。大凡经络有病，针灸都可以治疗。如果到了真脏受病的地步，就都属于不可治疗的证候，不仅仅是心经如此。心包与心主，本来不是两个脏腑，那些将厥阴视为少阴外经的观点，谬误非常严重）。此处又是手太阳小肠经的交会穴（《灵枢》记载：手太阳小肠经的经脉，沿着手外侧上行，经过腕部出踝骨中间）。
(The malleolus-like bone at the lower medial aspect of the posterior wrist is the location of Shenmen [HT7] (Shenmen, Spirit Gate), an acupoint on the wrist appendage). This area belongs to the Hand-Shaoyin Heart Meridian (The *Ling Shu* states: "The meridian of the Hand-Shaoyin follows the posterior medial border of the arm and reaches the end of the sharp bone behind the palm." The *Su Wen* states: "In the middle region, the Hand-Shaoyin meridian corresponds to the Heart. Note: The Heart pulse is located at the end of the sharp bone behind the palm, in the territory of Shenmen, where the pulsation is palpable by hand." The *Ling Shu* further states: "Wherever pathogenic factors reside in the Heart, they are actually in the Pericardium. The Pericardium is the meridian of the Heart Master; therefore, it has no [acupoints for direct treatment of the organ itself]. If the exterior meridian is diseased but the zang organ is not, one should exclusively select points on this meridian at the end of the sharp bone behind the palm." Shen Chengzhi argues: My commentary notes that the so-called 'exterior meridian' refers to the Hand-Jueyin Pericardium Meridian. The phrase 'the zang organ is not diseased' means that the Heart organ itself does not become diseased. For instance, conditions such as Shaoyin or Jueyin heart pain radiating to the throat with body heat, which are fatal and incurable, do not imply that the Heart does not get sick. The *Nan Jing* states: "If the Heart pulse is found, its external manifestations include a red face, dry mouth, and excessive laughter; its diseases involve vexation in the heart, heart pain, and heat in the palms accompanied by pain. If these symptoms are present, it is a Heart disease; if absent, it is not. These several syndromes are all diseases generated by disturbances in the Hand-Jueyin meridian. The reason the *Nan Jing* places them under the Hand-Shaoyin meridian is precisely to emphasize that the Heart Master cannot be diseased directly, and its disorders are all of the exterior meridian type. It is unclear why it is solely stated that the Shaoyin has no [specific acupoint for the organ]." Generally, the five zang organs have acupoints; for the Heart, these are the two Shenmen points at the sharp bone. Now it says there are no acupoints, which is confusing. I leave this doubt aside for future clarification." Gu Yingbai states: My commentary notes that the *Jia Yi Jing* records that among the eight acupoints of the Shaoyin, seven have therapeutic effects, while one does not, because pathogens cannot lodge there; hence it is said that there are "no [therapeutic acupoints]." The general meaning of the statement in the classics that the Heart Master has no acupoints is roughly as described above. Did the sages of old fail to consider this? The 'exterior meridian' refers to the meridians of the Heart; the zang organs are internal, while the meridians are external. Generally, when meridians are diseased, acupuncture and moxibustion can treat them. However, if the true zang organs themselves are diseased, these are considered incurable conditions, not just limited to the Heart meridian. The Pericardium and the Heart Master are essentially not two separate organs; those who regard the Jueyin as the exterior meridian of the Shaoyin commit a significant error)." This point is also an intersection with the Hand-Taiyang Small Intestine Meridian (The *Ling Shu* states: "The meridian of the Hand-Taiyang follows the lateral side of the hand and ascends past the wrist, emerging from between the malleoli").