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

前有风湿性心脏病伴二尖狭窄病史。

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

这个位置就是听二尖关闭的最佳位置。

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

最后，马方综合征也是二尖脱垂的一个危险因素，即二尖在收缩期时突向左心房。

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尖和三尖关闭的声音，所它可在二尖和三尖听诊区被清晰听到。

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，所血液通过二尖左心室。

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。而且二尖连接着左右心室也狭窄得很严重。

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

左心房后，血液穿过第二个房室膜，称为二尖，左心室。

I believe the abnormal insertion of the mitral valve can be -- - Stop.

我相信二尖附着异常可... -停。

In this case, since it's the mitral valve, we call this mitral regurgitation.

在这种情况下，由于是二尖，我们称之为二尖反流。

Other conditions that cause audible systolic murmurs include ventricular septal defect and mitral valve prolapse.

产可闻及的收缩期杂音的其他情况包括室间隔缺损和二尖脱垂。

Might I ask you--would you have the kindness? I have grave doubts as to my mitral valve, if you would be so very good.

我可不可请求您--您肯不肯给我听一听？劳驾吧，我心脏的僧帽也许有毛病。

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；这些血将经从二尖及三尖到心室。

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.

二尖只有两个尖叶：一个在前面，叫前叶，小一些；另一个在后面，叫后叶。

From the lungs, freshly oxygenated blood flows back into the left atrium and passively passes through the mitral or bicuspid valve to fill the left ventricle.

新鲜的含氧血液从肺部流回左心房，被动地通过二尖（bicuspid valve）注左心室。

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，三尖和二尖打开；让血液再次充盈心室，这段时期叫做心脏舒张期。

Examples of conditions associated with common systolic murmurs include: mitral valve regurgitation, when the mitral valve does not close properly and blood surges back to the left atrium during systole.

二尖反流，当二尖关闭不全时，血液在收缩期反流至左心房。

Now that blood is freshly oxygenated from its trip to the lungs, it returns to the left atrium of the heart and passively flows through the bicuspid (or mitral valve).

现在，血液从肺部时被新鲜氧化，回到心脏的左心房，并被动地流过二尖（或mitral valve）。

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，三尖和二尖关闭时发出的声音。

Oxygenated blood returns to the heart by way of pulmonary veins, which empty into the left atrium. Atrial contractions force blood from the left atrium through the mitral valve, also called bicuspid valve, into the left ventricle.

当心室收缩时，左室内血液经主动脉流主动脉¬----人体最大的动脉，为全身组织供血。