Threaded through a person's blood vessels, the sensor can provide blood pressure readings at the valve of the heart itself.

穿过一的血管，传感器可以在心瓣膜提供血压读数。

Others believe the symbol emerged in medieval times when scientists attempted to illustrate Aristotle's ancient writings on anatomy, where he described the human heart as having three valves with a dent in the middle.

有认为这符号是在中世纪时期出现的，因为当科学家试图解释亚里士多德关于解剖的古老著作时，发现他在其中描述类心有三瓣膜，中间有凹陷。

They have special, sort of valves in their circulatory system that does actually stop the pooling of blood in the head.

它们的循环系统内有象是瓣膜一样的特殊构造，防止血液冲向头部。

Pig heart valves have been used successfully for many years in humans.

猪的心瓣膜已被成功用于类治疗很多年了。

What you're really hearing there are the person's heart valves opening and closing.

你真正听到的是的心瓣膜打开和关闭。

Uh, so Naomi's heart valve...wh-what does this mean?

哦，那 Naomi 的心瓣膜...这是什么意思？

It might seem a touch fresher when you very first open it, but really, it's not worth not buying, or it's not worth freaking out about if a valve has failed.

当你第一次打开它的时候，它可能来更新鲜，但实际上，它不值得不买，或者不值得因为瓣膜故障而惊慌失措。

Valves are just " communicating doors" that, when open, allow blood to pass through, and when closed, hold blood within a chamber.

瓣膜就像“交通门”一样，打开时，允许血流入；关上时，把血储存在腔室内。

He lifted massively heavyweights, and it turned his aortic valve, the one that looks like a Mercedes sign, into a bicuspid double triangular flap.

他能举巨大的重物，使用类固醇把他的主动脉瓣，那来像梅赛德斯标志的瓣膜，变成了只有一二尖瓣膜，两三尖瓣膜。

The way it works is that the surrounding skeletal muscles compress the vein and propel blood forward, and the veins prevent blood from moving backwards by using one-way valves.

它具体的机制是通过围绕在血管周围的肌肉挤压静脉来推动血流回流，且静脉通过单向瓣膜来阻止静脉逆流。

VUR can be the result of a primary congenital defect or it can be caused by bladder outlet obstruction, which increases pressure in the bladder and distorts the valve.

VUR可能由原发性先天性缺陷导致，也可能由于膀胱出口阻塞，导致膀胱内压力增高，使输尿管口瓣膜扭曲。

The group also notes that radiation can cause heart rhythm disorders and structural damage in blood vessels and heart valves.

美国心协会指出，辐射可能导致心律失常和血管和心瓣膜的结构损伤。

So he says to his wife, " you don't love me anymore? " His heart- boom! Quadruple bypass. Blown a valve.

“你不再爱我了吗？”他的心受到了重创！做了第四次心搭桥手术。瓣膜撕裂。

The actual heart looks like, well any other organ, gross and slimy with all kinds of weird veins, valves and ventricles.

真正的心来就像其他器官一样，粗糙而粘稠，有各种奇怪的静脉、瓣膜和心室。

In this nasal region are liplike flaps of tissue called dorsal bursae that vibrate and collide to produce dolphin talk.

海豚的鼻区有被称为背侧黏液囊的唇形片状瓣膜，通过振动和碰撞让海豚能够“讲话”。

In particular, it's implicated in oxidative stress and myocardial fibrosis — an abnormal thickening of the heart valves.

醛固酮与氧化应激和心肌纤维化（心瓣膜异常增厚）尤其相关。

So, in every step, some valves have to open and others have to close.

所以，在每一步中，某些瓣膜须开放，而另一些则须关上。

So instead of three flaps opening every time, you breathe in and out, two.

所以每次你吸气和呼气时，不是打开三瓣膜，而是打开两。

When cardiomyopathy develops as a way to compensate for some other underlying disease like hypertension or valve diseases, it's called secondary cardiomyopathy, but when it develops all by itself, it's called a primary cardiomyopathy.

当心肌病的产生是由于心为了代偿其他潜在疾病时，比如说高血压或者心瓣膜疾病，它就叫做继发性心肌病，但如果它的致病原因在心自身时，则称为原发性心肌病。

When a valve opens, blood flows in one direction into the next chamber. And when it closes, that's it — no blood can just flow back into the chamber it just left.

当瓣膜打开时，血液从一方向流向下一腔室。当它关闭时，就这样——没有血液可以流回它刚刚离开的腔室。