Chapter XV

The Circulation of the Blood is Further Confirmed by Probable Reasons

It will not be foreign to the subject if I here show further, from certain familiar reasonings, that the circulation is matter both of convenience and necessity. In the first place, since death is a corruption¹ which takes place through deficiency of heat, 11 and since all living things are warm, all dying things cold, there must be a particular seat and fountain, a kind of home and hearth², where the cherisher of nature, the original of the native fire, is stored and preserved; from which heat and life are dispensed³ to all parts as from a fountain head; from which sustenance⁴ may be derived⁵; and upon which concoction⁶ and nutrition, and all vegetative energy may depend. Now, that the heart is this place, that the heart is the principle of life, and that all passes in the manner just mentioned, I trust no one will deny.

The blood, therefore, required to have motion, and indeed such a motion that it should return again to the heart; for sent to the external parts of the body far from its fountain, as Aristotle says, and without motion it would become congealed⁷. For we see motion generating and keeping up heat and spirits under ail⁸ circumstances, and rest allowing them to escape and be dissipated. The blood, therefore, becoming thick or congealed by the cold of the extreme and outward parts, and robbed of its spirits, just as it is in the dead, it was imperative⁹ that from its fount and origin, it should again receive heat and spirits, and all else requisite¹⁰ to its preservation¹¹ — that, by returning, it should be renovated¹² and restored.

We frequently see how the extremities¹³ are chilled by the external cold, how the nose and cheeks and hands look blue, and how the blood, stagnating¹⁴ in them as in the pendent or lower parts of a corpse¹⁵, becomes of a dusky hue¹⁶; the limbs at the same time getting torpid¹⁷, so that they can scarcely be moved, and seem almost to have lost their vitality¹⁸. Now they can by no means be so effectually, and especially so speedily restored to heat and colour and life, as by a new efflux and contact of heat from its source. But how can parts attract in which the heat and life are almost extinct? Or how should they whose passages are filled with condensed and frigid¹⁹ blood, admit fresh aliment — renovated blood — unless they had first got rid of their old contents? Unless the heart were truly that fountain where life and heat are restored to the refrigerated fluid, and whence new blood, warm, imbued²⁰ with spirits, being sent out by the arteries²¹, that which has become cooled and effete²² is forced on, and all the particles recover their heat which was failing, and their vital stimulus²³ wellnigh exhausted²⁴.

Hence it is that if the heart be unaffected, life and health may be restored to almost all the other parts of the body; but if the heart be chilled, or smitten²⁵ with any serious disease, it seems matter of necessity that the whole animal fabric²⁶ should suffer and fall into decay. When the source is corrupted²⁷, there is nothing, as Aristotle says,12 which can be of service either to it or aught that depends on it. And hence, by the way, it may perchance be why grief, and love, and envy, and anxiety, and all affections of the mind of a similar kind are accompanied with emaciation²⁸ and decay, or with disordered fluids and crudity²⁹, which engender³⁰ all manner of diseases and consume the body of man. For every affection of the mind that is attended with either pain or pleasure, hope or fear, is the cause of an agitation³¹ whose influence extends to the heart, and there induces change from the natural constitution, in the temperature, the pulse and the rest, which impairing³² all nutrition in its source and abating³³ the powers at large, it is no wonder that various forms of incurable³⁴ disease in the extremities and in the trunk are the consequence, inasmuch as in such circumstances the whole body labours under the effects of vitiated nutrition and a want of native heat.

Moreover, when we see that all animals live through food digested in their interior, it is imperative that the digestion³⁵ and distribution be perfect, and, as a consequence, that there be a place and receptacle where the aliment is perfected and whence it is distributed to the several members. Now this place is the heart, for it is the only organ in the body which contains blood for the general use; all the others receive it merely for their peculiar³⁶ or private advantage, just as the heart also has a supply for its own especial behoof in its coronary veins³⁷ and arteries. But it is of the store which the heart contains in its auricles and ventricles that I here speak. Then the heart is the only organ which is so situated³⁸ and constituted that it can distribute the blood in due proportion to the several parts of the body, the quantity sent to each being according to the dimensions of the artery³⁹ which supplies it, the heart serving as a magazine or fountain ready to meet its demands.

Further, a certain impulse or force, as well as an impeller or forcer, such as the heart, was required to effect this distribution and motion of the blood; both because the blood is disposed from slight causes, such as cold, alarm, horror, and the like, to collect in its source, to concentrate like parts to a whole, or the drops of water spilt upon a table to the mass of liquid; and because it is forced from the capillary⁴⁰ veins into the smaller ramifications⁴¹, and from these into the larger trunks by the motion of the extremities and the compression of the muscles generally. The blood is thus more disposed to move from the circumference⁴² to the centre than in the opposite direction, even were there no valves to oppose its motion; wherefore, that it may leave its source and enter more confined and colder channels, and flow against the direction to which it spontaneously inclines, the blood requires both force and impelling⁴³ power. Now such is the heart and the heart alone, and that in the way and manner already explained.

1 corruption   

n.腐败，堕落，贪污

参考例句：

• The people asked the government to hit out against corruption and theft.人民要求政府严惩贪污盗窃。
• The old man reviled against corruption.那老人痛斥了贪污舞弊。

2 hearth   

n.壁炉炉床，壁炉地面

参考例句：

• She came and sat in a chair before the hearth.她走过来，在炉子前面的椅子上坐下。
• She comes to the hearth,and switches on the electric light there.她走到壁炉那里，打开电灯。

3 dispensed   

v.分配( dispense的过去式和过去分词 )；施与；配（药）

参考例句：

• Not a single one of these conditions can be dispensed with. 这些条件缺一不可。 来自《现代汉英综合大词典》
• They dispensed new clothes to the children in the orphanage. 他们把新衣服发给孤儿院的小孩们。 来自《现代英汉综合大词典》

4 sustenance   

n.食物，粮食；生活资料；生计

参考例句：

• We derive our sustenance from the land.我们从土地获取食物。
• The urban homeless are often in desperate need of sustenance.城市里无家可归的人极其需要食物来维持生命。

5 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》

6 concoction   

n.调配(物)；谎言

参考例句：

• She enjoyed the concoction of foreign dishes.她喜欢调制外国菜。
• His story was a sheer concoction.他的故事实在是一纯属捏造之事。

7 congealed   

v.使凝结，冻结( congeal的过去式和过去分词 )；（指血）凝结

参考例句：

• The cold remains of supper had congealed on the plate. 晚餐剩下的冷饭菜已经凝结在盘子上了。
• The oil at last is congealed into a white fat. 那油最终凝结成了一种白色的油脂。 来自《简明英汉词典》

8 ail   

v.生病，折磨，苦恼

参考例句：

• It may provide answers to some of the problems that ail America.这一点可能解答困扰美国的某些问题。
• Seek your sauce where you get your ail.心痛还须心药治。

9 imperative   

n.命令，需要；规则；祈使语气；adj.强制的；紧急的

参考例句：

• He always speaks in an imperative tone of voice.他老是用命令的口吻讲话。
• The events of the past few days make it imperative for her to act.过去这几天发生的事迫使她不得不立即行动。

10 requisite   

adj.需要的，必不可少的；n.必需品

参考例句：

• He hasn't got the requisite qualifications for the job.他不具备这工作所需的资格。
• Food and air are requisite for life.食物和空气是生命的必需品。

11 preservation   

n.保护，维护，保存，保留，保持

参考例句：

• The police are responsible for the preservation of law and order.警察负责维持法律与秩序。
• The picture is in an excellent state of preservation.这幅画保存得极为完好。

12 renovated   

翻新，修复，整修( renovate的过去式和过去分词 )

参考例句：

• He renovated his house. 他翻修了房子。
• The house has been renovated three years earlier. 这所房子三年前就已翻新。

13 extremities   

n.端点( extremity的名词复数 )；尽头；手和足；极窘迫的境地

参考例句：

• She was most noticeable, I thought, in respect of her extremities. 我觉得她那副穷极可怜的样子实在太惹人注目。 来自辞典例句
• Winters may be quite cool at the northwestern extremities. 西北边区的冬天也可能会相当凉。 来自辞典例句

14 stagnating   

v.停滞，不流动，不发展( stagnate的现在分词 )

参考例句：

• I feel I'm stagnating in this job. 我觉得，干这份工作我没有长进。
• ITT was stagnating when Geneen became the chief executive officer in 1959. 1959年吉宁出任行政总负责人时，国际电话电报公司正处于不景气时期。 来自辞典例句

15 corpse   

n.尸体，死尸

参考例句：

• What she saw was just an unfeeling corpse.她见到的只是一具全无感觉的尸体。
• The corpse was preserved from decay by embalming.尸体用香料涂抹以防腐烂。

16 hue   

n.色度；色调；样子

参考例句：

• The diamond shone with every hue under the sun.金刚石在阳光下放出五颜六色的光芒。
• The same hue will look different in different light.同一颜色在不同的光线下看起来会有所不同。

17 torpid   

adj.麻痹的，麻木的，迟钝的

参考例句：

• He just walked and his mind drifted slowly like a torpid stream.他只是埋头走，脑袋里思想都凝滞了，有如一汪流不动的溪水。
• Even when he was awake he was completely torpid.他醒着的时候也完全麻木不动。

18 vitality   

n.活力，生命力，效力

参考例句：

• He came back from his holiday bursting with vitality and good health.他度假归来之后，身强体壮，充满活力。
• He is an ambitious young man full of enthusiasm and vitality.他是个充满热情与活力的有远大抱负的青年。

19 frigid   

adj.寒冷的，凛冽的；冷淡的；拘禁的

参考例句：

• The water was too frigid to allow him to remain submerged for long.水冰冷彻骨，他在下面呆不了太长时间。
• She returned his smile with a frigid glance.对他的微笑她报以冷冷的一瞥。

20 imbued   

v.使（某人/某事）充满或激起（感情等）( imbue的过去式和过去分词 )；使充满；灌输；激发（强烈感情或品质等）

参考例句：

• Her voice was imbued with an unusual seriousness. 她的声音里充满着一种不寻常的严肃语气。
• These cultivated individuals have been imbued with a sense of social purpose. 这些有教养的人满怀着社会责任感。 来自《简明英汉词典》

21 arteries   

n.动脉( artery的名词复数 )；干线，要道

参考例句：

• Even grafting new blood vessels in place of the diseased coronary arteries has been tried. 甚至移植新血管代替不健康的冠状动脉的方法都已经试过。 来自《简明英汉词典》
• This is the place where the three main arteries of West London traffic met. 这就是伦敦西部三条主要交通干线的交汇处。 来自《简明英汉词典》

22 effete   

adj.无生产力的，虚弱的

参考例句：

• People said the aristocracy was effete.人们说贵族阶级已是日薄西山了。
• During the ages,Greek civilization declined and became effete.在中世纪期间，希腊文明开始衰落直至衰败。

23 stimulus   

n.刺激，刺激物，促进因素，引起兴奋的事物

参考例句：

• Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励。
• Light is a stimulus to growth in plants.光是促进植物生长的一个因素。

24 exhausted   

adj.极其疲惫的，精疲力尽的

参考例句：

• It was a long haul home and we arrived exhausted.搬运回家的这段路程特别长，到家时我们已筋疲力尽。
• Jenny was exhausted by the hustle of city life.珍妮被城市生活的忙乱弄得筋疲力尽。

25 smitten   

猛打，重击，打击( smite的过去分词 )

参考例句：

• From the moment they met, he was completely smitten by her. 从一见面的那一刻起，他就完全被她迷住了。
• It was easy to see why she was smitten with him. 她很容易看出为何她为他倾倒。

26 fabric   

n.织物，织品，布；构造，结构，组织

参考例句：

• The fabric will spot easily.这种织品很容易玷污。
• I don't like the pattern on the fabric.我不喜欢那块布料上的图案。

27 corrupted   

（使）败坏( corrupt的过去式和过去分词 )； （使）腐化； 引起（计算机文件等的）错误； 破坏

参考例句：

• The body corrupted quite quickly. 尸体很快腐烂了。
• The text was corrupted by careless copyists. 原文因抄写员粗心而有讹误。

28 emaciation   

n.消瘦，憔悴，衰弱

参考例句：

• His face was hollowed out to the point of emaciation. 他的脸瘦削到了憔悴的地步。 来自《简明英汉词典》
• These photographs show extremes of obesity and emaciation. 这些照片展现了肥胖与消瘦两个极端。 来自《简明英汉词典》

29 crudity   

n.粗糙，生硬；adj.粗略的

参考例句：

• I'd never met such crudity before.我从未见过这样粗鲁的行径。
• Birthplace data are only the crudest indicator of actual migration paths.出生地信息只能非常粗略地显示实际移民过程。

30 engender   

v.产生，引起

参考例句：

• A policy like that tends to engender a sense of acceptance,and the research literature suggests this leads to greater innovation.一个能够使员工产生认同感的政策，研究表明这会走向更伟大的创新。
• The sense of injustice they engender is a threat to economic and political security.它们造成的不公平感是对经济和政治安全的威胁。

31 agitation   

n.搅动；搅拌；鼓动，煽动

参考例句：

• Small shopkeepers carried on a long agitation against the big department stores.小店主们长期以来一直在煽动人们反对大型百货商店。
• These materials require constant agitation to keep them in suspension.这些药剂要经常搅动以保持悬浮状态。

32 impairing   

v.损害，削弱( impair的现在分词 )

参考例句：

• Carbon monoxide is definitely capable of impairing cardiovascular function. 一氧化碳确实能损害心血管机能。 来自辞典例句
• Could it be effected without impairing his reputation as well as his fortune? 他能否不损害他的声誉和财富而办到这一点呢？ 来自辞典例句

33 abating   

减少( abate的现在分词 )； 减去； 降价； 撤消（诉讼）

参考例句：

• The storm showed no signs of abating. 暴风雨没有减弱的迹象。
• The recent public anxiety about this issue may now be abating. 近来公众对这个问题的焦虑心情现在也许正在缓和下来。

34 incurable   

adj.不能医治的，不能矫正的，无救的；n.不治的病人，无救的人

参考例句：

• All three babies were born with an incurable heart condition.三个婴儿都有不可治瘉的先天性心脏病。
• He has an incurable and widespread nepotism.他们有不可救药的，到处蔓延的裙带主义。

35 digestion   

n.消化，吸收

参考例句：

• This kind of tea acts as an aid to digestion.这种茶可助消化。
• This food is easy of digestion.这食物容易消化。

36 peculiar   

adj.古怪的，异常的；特殊的，特有的

参考例句：

• He walks in a peculiar fashion.他走路的样子很奇特。
• He looked at me with a very peculiar expression.他用一种很奇怪的表情看着我。

37 veins   

n.纹理；矿脉( vein的名词复数 )；静脉；叶脉；纹理

参考例句：

• The blood flows from the capillaries back into the veins. 血从毛细血管流回静脉。 来自《简明英汉词典》
• I felt a pleasant glow in all my veins from the wine. 喝过酒后我浑身的血都热烘烘的，感到很舒服。 来自《简明英汉词典》

38 situated   

adj.坐落在...的，处于某种境地的

参考例句：

• The village is situated at the margin of a forest.村子位于森林的边缘。
• She is awkwardly situated.她的处境困难。

39 artery   

n.干线，要道；动脉

参考例句：

• We couldn't feel the changes in the blood pressure within the artery.我们无法感觉到动脉血管内血压的变化。
• The aorta is the largest artery in the body.主动脉是人体中的最大动脉。

40 capillary   

n.毛细血管；adj.毛细管道；毛状的

参考例句：

• Rapid capillary proliferation is a prominent feature of all early wound healing.迅速的毛细血管增生是所有早期伤口愈合的一个突出表现。
• When pulmonary capillary pressure is markedly elevated,pulmonary edema ensues.当肺毛细血管压力明显升高时，就出现肺水肿。

41 ramifications   

n.结果，后果( ramification的名词复数 )

参考例句：

• These changes are bound to have widespread social ramifications. 这些变化注定会造成许多难以预料的社会后果。
• What are the ramifications of our decision to join the union? 我们决定加入工会会引起哪些后果呢？ 来自《简明英汉词典》

42 circumference   

n.圆周，周长，圆周线

参考例句：

• It's a mile round the circumference of the field.运动场周长一英里。
• The diameter and the circumference of a circle correlate.圆的直径与圆周有相互关系。

43 impelling   

adj.迫使性的，强有力的v.推动、推进或敦促某人做某事( impel的现在分词 )

参考例句：

• Impelling-binding mechanism is the micro foundation of venture capital operation. 激励约束机制是创业投资运作的微观基础。 来自互联网
• Impelling supervision is necessary measure of administrative ethic construction. 强有力的监督是行政伦理建设的重要保证。 来自互联网