Past medical history of rheumatic heart disease with mitral valve stenosis.

以前有风湿性心脏病伴二狭窄病史。

Finally, Marfan syndrome is a risk factor for mitral valve prolapse, where the mitral valve pouches into the left atrium during systole.

最后，马方综合征也是二垂的一危险因素，即二在收缩期时突向左心房。

That's where the mitral valve closing is best heard.

这位置就是听二关闭的最佳位置。

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

他能举起巨大的重物，使用类固醇把他的主动脉，那看起来像梅赛德斯标志的膜，变成了只有一二膜，两三膜。

Inside the glomerulus, the olfactory axons meet up with the dendrites of another kind of nerve cell, called a mitral cell, which relays the signal to the brain.

在肾小球内，嗅觉轴突与另一种神经细胞的树突相遇，称为二细胞，将信号传递到大脑。

For example, the right and left atria are both full of blood, and that blood moves through the tricuspid and the mitral valve to get down into the ventricles.

例如，右心房及左心房充满了血；这些血将经从二及三到心室。

As a result, every combination of an olfactory neuron and a mitral cell is like a single note, and the smell coming off of this pizza triggers countless of those combinations, forming a delicious musical chord of smells.

因此，嗅觉神经元和二细胞的每一组合都像一音符，披萨散发出的气味会触发无数这样的组合，形成美味的气味音乐和弦。

Oh, the echo tests showed mild mitral stenosis. The tilt test was negative. We're doing E.P. Studies.

哦，超声波检查表明轻微的二狭窄。穿刺结果也不好。我们在做EP研究。

The mitral valve only has two cusps or leaflets one in front, called the anterior leaflet (that's a little smaller), and one behind it, called the posterior leaflet.

二只有两叶：一在前面，叫前叶，小一些；另一在后面，叫后叶。

So, once a mitral cell picks up its signal from an olfactory neuron, it sends it along the olfactory tract to the olfactory cortex of the brain.

因此，一旦二细胞接收到来自嗅觉神经元的信号，它就会沿着嗅道将其发送到大脑的嗅觉皮层。

The chambers on the left side are underdeveloped. In addition, the mitral valve, which connects these two chambers, is abnormally narrow.

左心室发育得不完全。而且二连接着左右心室也狭窄得很严重。

And because it's basically the tricuspid and mitral valve closing, it's best heard in the tricuspid valve and mitral valve area.

因为它主要是因为二和三关闭的声音，所以它可以在二和三听诊区被清晰听到。

So for each mitral cell, there are any number of olfactory axons synapsing with it, each representing and identifying a single volatile chemical.

所以对于每二细胞，有任意数量的嗅觉轴突与其突触，每代表并识别一种挥发性化物质。

After entering the left atrium, the blood goes through the second atrioventricular valve called the mitral valve into the left ventricle.

进入左心房后，血液穿过第二房室膜，称为二，进入左心室。

So the first " lub" that you hear in that lub-DUB is made by the mitral and tricuspid valves closing.

所以你在 lub-DUB 中听到的第一“lub”是由二和三关闭发出的。

Then the atrium contracts, which increases the pressure, so the blood passes down through the mitral valve into the left ventricle.

然后心房收缩，增加压力，所以血液通过二进入左心室。

That first heart sound, " lub" , is called S1, and the noise comes from the tricuspid and mitral valves snapping shut when the left and right ventricles contract, which happens at about the same time.

第一心音“lub”叫做S1，是在左、右心室同时收缩，三和二关闭时发出的声音。

Right after the S2 sound, the tricuspid and mitral valves open back up allowing blood to fill up the ventricles again and this period of time is called diastole.

在S2之后，三和二打开；让血液再次充盈心室，这段时期叫做心脏舒张期。

After leading to a glomerulus, these neurons synapse with mitral cells, which go on to send signals to the brain.

在通过肾小球后，这些神经元与二细胞突触，二细胞继续向大脑发送信号。

He has a murmur of mitral insufficiency.

他有二关闭不全的杂音。