Chapter 13

Empedocles also gives an account of respiration¹ without, however, making clear what its purpose is, or whether or not it is universal in animals. Also when dealing² with respiration by means of the nostrils³ he imagines he is dealing with what is the primary kind of respiration. Even the breath which passes through the nostrils passes through the windpipe out of the chest as well, and without the latter the nostrils cannot act. Again, when animals are bereft⁴ of respiration through the nostrils, no detrimental⁵ result ensues, but, when prevented from breathing through the windpipe, they die. Nature employs respiration through the nostrils as a secondary function in certain animals in order to enable them to smell. But the reason why it exists in some only is that though almost all animals are endowed with the sense of smell, the sense-organ is not the same in all.

A more precise account has been given about this elsewhere. Empedocles, however, explains the passage inwards and outwards⁶ of the breath, by the theory that there are certain blood-vessels, which, while containing blood, are not filled by it, but have passages leading to the outer air, the calibre of which is fine in contrast to the size of the solid particles, but large relatively⁸ to those in the air. Hence, since it is the nature of the blood to move upwards⁹ and downwards¹⁰, when it moves down the air rushes in and inspiration occurs; when the blood rises, the air is forced out and the outward motion of the breath results. He compares this process to what occurs in a clepsydra.

Thus all things outwards breathe and in; — their flesh has tubes
Bloodless, that stretch towards the body’s outmost edge,
Which, at their mouths, full many frequent channels pierce,
Cleaving¹¹ the extreme nostrils through; thus, while the gore¹²
Lies hid, for air is cut a thoroughfare most plain.
And thence, whenever shrinks away the tender blood,
Enters the blustering¹³ wind with swelling¹⁴ billow wild.
But when the blood leaps up, backward it breathes. As when
With water-clock of polished bronze a maiden¹⁵ sporting,
Sets on her comely¹⁶ hand the narrow of the tube
And dips it in the frail-formed water’s silvery sheen;
Not then the flood the vessel⁷ enters, but the air,
Until she frees the crowded stream. But then indeed
Upon the escape runs in the water meet.
So also when within the vessel’s deeps the water
Remains¹⁷, the opening by the hand of flesh being closed,
The outer air that entrance craves¹⁸ restrains the flood
At the gates of the sounding narrow,
upon the surface pressing,
Until the maid withdraws her hand. But then in contrariwise
Once more the air comes in and water meet flows out.
Thus to the to the subtle blood, surging throughout the limbs,
Whene’er it shrinks away into the far recesses¹⁹
Admits a stream of air rushing with swelling wave,
But, when it backward leaps, in like bulk air flows out.

This then is what he says of respiration. But, as we said, all animals that evidently respire do so by means of the windpipe, when they breathe either through the mouth or through the nostrils. Hence, if it is of this kind of respiration that he is talking, we must ask how it tallies²⁰ with the explanation given. But the facts seem to be quite opposed. The chest is raised in the manner of a forge-bellows²¹ when the breath is drawn²² in-it is quite reasonable that it should be heat which raises up and that the blood should occupy the hot region-but it collapses²³ and sinks down, like the bellows once more, when the breath is let out. The difference is that in a bellows it is not by the same channel that the air is taken in and let out, but in breathing it is.

But, if Empedocles is accounting²⁴ only for respiration through the nostrils, he is much in error, for that does not involve the nostrils alone, but passes by the channel beside the uvula where the extremity²⁵ of the roof of the mouth is, some of the air going this way through the apertures²⁶ of the nostrils and some through the mouth, both when it enters and when it passes out. Such then is the nature and magnitude of the difficulties besetting²⁷ the theories of other writers concerning respiration.

1 respiration   

n.呼吸作用；一次呼吸；植物光合作用

参考例句：

• They tried artificial respiration but it was of no avail.他们试做人工呼吸，可是无效。
• They made frequent checks on his respiration,pulse and blood.他们经常检查他的呼吸、脉搏和血液。

2 dealing   

n.经商方法，待人态度

参考例句：

• This store has an excellent reputation for fair dealing.该商店因买卖公道而享有极高的声誉。
• His fair dealing earned our confidence.他的诚实的行为获得我们的信任。

3 nostrils   

鼻孔( nostril的名词复数 )

参考例句：

• Her nostrils flared with anger. 她气得两个鼻孔都鼓了起来。
• The horse dilated its nostrils. 马张大鼻孔。

4 bereft   

adj.被剥夺的

参考例句：

• The place seemed to be utterly bereft of human life.这个地方似乎根本没有人烟。
• She was bereft of happiness.她失去了幸福。

5 detrimental   

adj.损害的，造成伤害的

参考例句：

• We know that heat treatment is detrimental to milk.我们知道加热对牛奶是不利的。
• He wouldn't accept that smoking was detrimental to health.他不相信吸烟有害健康。

6 outwards   

adj.外面的，公开的，向外的；adv.向外；n.外形

参考例句：

• Does this door open inwards or outwards?这门朝里开还是朝外开？
• In lapping up a fur,they always put the inner side outwards.卷毛皮时，他们总是让内层朝外。

7 vessel   

n.船舶；容器，器皿；管，导管，血管

参考例句：

• The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
• You should put the water into a vessel.你应该把水装入容器中。

8 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

9 upwards   

adv.向上，在更高处...以上

参考例句：

• The trend of prices is still upwards.物价的趋向是仍在上涨。
• The smoke rose straight upwards.烟一直向上升。

10 downwards   

adj./adv.向下的（地），下行的（地）

参考例句：

• He lay face downwards on his bed.他脸向下伏在床上。
• As the river flows downwards,it widens.这条河愈到下游愈宽。

11 cleaving   

v.劈开，剁开，割开( cleave的现在分词 )

参考例句：

• The freighter carrying pig iron is cleaving through the water. 装着生铁的货船正在破浪前进。 来自辞典例句
• IL-10-cDNA fragment was obtained through cleaving pUC-T-IL-10cDNA by reconstriction enzymes. 结果：pcDNA3.1-IL-10酶切鉴定的电泳结果显示，pcDNA3.1-IL-10质粒有一个560bp左右的插入片断，大小和IL-10cDNA大致符合。 来自互联网

12 gore   

n.凝血，血污；v.（动物）用角撞伤，用牙刺破；缝以补裆；顶

参考例句：

• The fox lay dying in a pool of gore.狐狸倒在血泊中奄奄一息。
• Carruthers had been gored by a rhinoceros.卡拉瑟斯被犀牛顶伤了。

13 blustering   

adj.狂风大作的，狂暴的v.外强中干的威吓( bluster的现在分词 )；咆哮；（风）呼啸；狂吹

参考例句：

• It was five and a half o'clock now, and a raw, blustering morning. 这时才五点半，正是寒气逼人，狂风咆哮的早晨。 来自辞典例句
• So sink the shadows of night, blustering, rainy, and all paths grow dark. 夜色深沉，风狂雨骤；到处途暗路黑。 来自辞典例句

14 swelling   

n.肿胀

参考例句：

• Use ice to reduce the swelling. 用冰敷消肿。
• There is a marked swelling of the lymph nodes. 淋巴结处有明显的肿块。

15 maiden   

n.少女，处女；adj.未婚的，纯洁的，无经验的

参考例句：

• The prince fell in love with a fair young maiden.王子爱上了一位年轻美丽的少女。
• The aircraft makes its maiden flight tomorrow.这架飞机明天首航。

16 comely   

adj.漂亮的，合宜的

参考例句：

• His wife is a comely young woman.他的妻子是一个美丽的少妇。
• A nervous,comely-dressed little girl stepped out.一个紧张不安、衣着漂亮的小姑娘站了出来。

17 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

18 craves   

渴望，热望( crave的第三人称单数 )； 恳求，请求

参考例句：

• The tree craves calm but the wind will not drop. 树欲静而风不止。
• Victory would give him a passport to the riches he craves. 胜利将使他有机会获得自己梦寐以求的财富。

19 recesses   

n.壁凹( recess的名词复数 )；（工作或业务活动的）中止或暂停期间；学校的课间休息；某物内部的凹形空间v.把某物放在墙壁的凹处( recess的第三人称单数 )；将（墙）做成凹形，在（墙）上做壁龛；休息，休会，休庭

参考例句：

• I could see the inmost recesses. 我能看见最深处。 来自《简明英汉词典》
• I had continually pushed my doubts to the darker recesses of my mind. 我一直把怀疑深深地隐藏在心中。 来自《简明英汉词典》

20 tallies   

n.账( tally的名词复数 )；符合；（计数的）签；标签v.计算，清点( tally的第三人称单数 )；加标签（或标记）于；（使）符合；（使）吻合

参考例句：

• Cash on hand tallies with the figure in the accounts. 现款跟账上的数目没有出入。 来自《现代汉英综合大词典》
• He tallies his own marks. 他把自己的得分记了下来。 来自《简明英汉词典》

21 bellows   

n.风箱；发出吼叫声，咆哮（尤指因痛苦）( bellow的名词复数 )；（愤怒地）说出（某事），大叫v.发出吼叫声，咆哮（尤指因痛苦）( bellow的第三人称单数 )；（愤怒地）说出（某事），大叫

参考例句：

• His job is to blow the bellows for the blacksmith. 他的工作是给铁匠拉风箱。 来自辞典例句
• You could, I suppose, compare me to a blacksmith's bellows. 我想，你可能把我比作铁匠的风箱。 来自辞典例句

22 drawn   

v.拖，拉，拔出；adj.憔悴的，紧张的

参考例句：

• All the characters in the story are drawn from life.故事中的所有人物都取材于生活。
• Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

23 collapses   

折叠( collapse的第三人称单数 )； 倒塌； 崩溃； （尤指工作劳累后）坐下

参考例句：

• This bridge table collapses. 这张桥牌桌子能折叠。
• Once Russia collapses, the last chance to stop Hitler will be gone. 一旦俄国垮台，抑止希特勒的最后机会就没有了。

24 accounting   

n.会计，会计学，借贷对照表

参考例句：

• A job fell vacant in the accounting department.财会部出现了一个空缺。
• There's an accounting error in this entry.这笔账目里有差错。

25 extremity   

n.末端，尽头；尽力；终极；极度

参考例句：

• I hope you will help them in their extremity.我希望你能帮助在穷途末路的他们。
• What shall we do in this extremity?在这种极其困难的情况下我们该怎么办呢？

26 apertures   

n.孔( aperture的名词复数 )；隙缝；（照相机的）光圈；孔径

参考例句：

• These apertures restrict the amount of light that can reach the detector. 这些光阑将会限制到达探测器的光线的总量。 来自互联网
• The virtual anode formation time and propagation velocity at different pressure with different apertures are investigated. 比较了在不同气压和空心阴极孔径下虚阳极的形成时间和扩展速度。 来自互联网

27 besetting   

adj.不断攻击的v.困扰( beset的现在分词 )；不断围攻；镶；嵌

参考例句：

• Laziness is my besetting sin. 懒惰是我积重难返的恶习。 来自辞典例句
• His besetting sin is laziness. 他所易犯的毛病就是懒惰。 来自辞典例句