Ancient Rome’s most notorious doctor - Ramon Glazov

3,064,156 views ・ 2019-07-18

TED-Ed


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翻译人员: Carol Wang 校对人员: Yanyan Hong
00:06
In the middle of the 16th century,
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在 16 世纪中期,
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a talented young anatomist named Andreas Vesalius made a shocking discovery:
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才华横溢的年轻解剖学家 安德烈亚斯·维萨里有了惊人发现:
00:14
the most famous human anatomy texts in the world were wrong.
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世上最著名的人体解剖理论是错的。
00:19
They not only failed to account for many details of the human body,
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它们不仅没有正确描述人体细节,
00:22
they also described the organs of apes and other mammals.
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还把描述人的器官描写成 猿人和其它哺乳动物的器官。
00:26
While Vesalius knew he was right,
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维萨里知道自己是正确的,
00:28
announcing these errors would mean challenging Galen of Pergamon–
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若宣布它是错误的话, 将意味着质疑帕加马的盖伦——
00:33
the most renowned physician in medical history.
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医学史上最著名的医生。
00:37
But who was this towering figure?
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但这位权威人物是何许人呢?
00:39
And why did doctors working more than 1,300 years later so revere and fear him?
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又为何 1300 年之后, 医生们依然尊敬和惧怕他呢?
00:46
Born in 129 CE,
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盖伦生于公元前 129 年,
00:48
Galen left home as a teen to scour the Mediterranean for medical wisdom.
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少年离家,前往地中海地区学医。
00:53
He returned home a gifted surgeon with a passion for anatomy
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回家时,已是一名 才华横溢的外科医生,
热爱并喜欢表演解剖。
00:57
and a penchant for showmanship.
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00:59
He gleefully entered public anatomy contests,
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他积极地参加公开解剖比赛,
01:02
eager to show up his fellow physicians.
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热心为同行们大展身手。
01:05
In one demonstration,
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在一次示范中,
01:07
he caused a pig to lose its voice by tying off one of its nerves.
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他阻断了猪的一条神经,猪就不叫了。
01:12
In another, he disemboweled a monkey and challenged his colleagues to repair it.
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另一次,他把一只猴子开了膛, 并挑战同行们去缝合它,
01:17
When they couldn’t, he did.
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当他们无法做到时,他却做到了。
01:19
These grizzly feats won him a position as surgeon to the city’s gladiators.
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这些艰辛的壮举,为他赢得了 角斗士学校的外科医生职位。
01:24
Eventually, he would leave the arena to become the personal physician
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最终,他离开了竞技场,
成为四位罗马皇帝的私人医师。
01:29
to four Roman Emperors.
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01:31
While his peers debated symptoms and their origins,
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盖伦的同龄人辩论症状及原因时,
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Galen obsessively studied anatomy.
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他则痴迷于研究解剖学,
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He was convinced that each organ had a specific function.
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他相信每个器官都有特殊的功能。
01:41
Since the Roman government largely prohibited working with human cadavers,
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由于罗马政府严禁解剖尸体,
01:45
Galen conducted countless dissections of animals instead.
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所以,盖伦大量解剖动物。
01:49
Even with this constraint,
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即使有这项限制,
01:51
his exhaustive investigations yielded some remarkably accurate conclusions.
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他的大量研究依然得出了 一些非常精确的结论。
01:56
One of Galen’s most important contributions
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盖伦最重要的贡献之一
01:59
was the insight that the brain, not the heart, controlled the body.
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是发现了控制身体的 是大脑,而不是心脏。
02:03
He confirmed this theory by opening the cranium of a living cow.
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他打开了一头活牛的头颅, 来证实了这一理论。
02:08
By applying pressure to different parts of the brain,
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通过对大脑不同部位施压,
02:11
he could link various regions to specific functions.
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他得以将不同的区域 与特定功能联系起来。
02:14
Other experiments allowed him to distinguish sensory from motor nerves,
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其它实验令他将感觉神经 与运动神经区分开来,
02:18
establish that urine was made in the kidneys,
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确立了尿液是由肾脏产生的,
02:21
and deduce that respiration was controlled by muscles and nerves.
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并推断出呼吸由神经和肌肉控制。
02:25
But these wild experiments also produced extraordinary misconceptions.
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但是这些疯狂的实验 也产生了大量错误结论。
02:30
Galen never realized that blood cycles continuously throughout the body.
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盖伦从来没意识到 血液循环遍及全身,
02:35
Instead, he believed the liver constantly produces an endless supply of blood,
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相反,他认为肝脏 产生源源不尽的血液,
02:40
which gets entirely depleted on its one-way trip to the organs.
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血液在流向器官途中耗尽。
02:45
Galen is also credited with solidifying the popular theory of the Four Humours.
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盖伦还被认为巩固了 “四体液学说”的流行理论,
02:51
Introduced by Hippocrates centuries earlier,
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这个误导人的假设——
由希波克拉底在几个世纪前提出,
02:54
this misguided hypothesis attributed most medical problems
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它将大多数医学病症 归因于四种体液的不平衡。
02:58
to an imbalance in four bodily fluids called humours.
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03:02
To correct the balance of these fluids, doctors employed dangerous treatments
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为了纠正这些液体的平衡,
医生采用了危险疗法, 例如,放血和净化。
03:07
like bloodletting and purging.
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03:09
Informed by his poor understanding of the circulatory system,
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由于对循环系统了解不足,
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Galen was a strong proponent of these treatments,
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盖伦大力支持这些疗法,
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despite their sometimes lethal consequences.
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尽管这些疗法 有时带来致命后果。
03:19
Unfortunately, Galen’s ego drove him to believe that
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很遗憾,盖伦的自负令他认为
03:22
all his discoveries were of the utmost importance.
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他所有发现都很重要。
03:25
He penned treatises on everything from anatomy to nutrition to bedside manner,
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他都撰写大量著作,涵盖解剖学、 营养学,以及医生对患者的态度,
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meticulously cataloguing his writings to ensure their preservation.
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并精心编制目录以安全保存。
03:35
Over the next 13 centuries,
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在接下来的 13 个世纪里,
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Galen’s prolific collection dominated all other schools of medical thought.
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盖伦的丰富著作主导了 所有其它医学思想流派。
03:42
His texts became the standard works taught to new generations of doctors,
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他的著作成为新一代医生的教科书,
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who in turn, wrote new essays extolling Galen’s ideas.
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而后者又写出 赞扬盖伦理论的新文章。
03:51
Even doctors who actually dissected human cadavers
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即使那些解剖人类尸体的医生,
03:55
would bafflingly repeat Galen’s mistakes,
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看到了与理论相左的确凿证据,
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despite seeing clear evidence to the contrary.
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也莫名其妙地重复盖伦的错误。
04:01
Meanwhile, the few practitioners bold enough to offer conflicting opinions
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同时,为数不多的大胆行医者 提出了与理论相左的意见,
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were either ignored or ridiculed.
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结局是被置之不理或成为笑柄。
04:09
For 1,300 years, Galen’s legacy remained untouchable–
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1300 年以来,盖伦理论 一直神圣不可侵犯——
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until renaissance anatomist Vesalius spoke out against him.
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直到文艺复兴时期 解剖学家维萨里提出反对意见。
04:18
As a prominent scientist and lecturer,
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盖伦作为杰出的科学家和讲师,
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his authority influenced many young doctors of his time.
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他的权威性对当时的 许多年轻医生影响很大。
04:24
But even then, it took another hundred years
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但是即使到那时,
一百年之后才出现了 对血流的准确描述,
04:27
for an accurate description of blood flow to emerge,
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04:30
and two hundred more for the theory of the Four Humours to fade.
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之后,又过了两百年, 四体液理论才逐渐消失。
04:35
Hopefully, today we can reap the benefits of Galen’s experiments
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希望今天我们可对盖伦实验
04:39
without attributing equal credence to his less accurate ideas.
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取其精华、去其槽粕。
04:44
But perhaps just as valuable
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但也许同样有价值的是, 它提醒人们:
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is the reminder that science is an ever-evolving process,
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科学是一个不断发展的过程,
04:50
which should always place evidence above ego.
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应始终将证据置于自我之上。
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