Naomi Cline, 43, had her tricuspid valve replaced three years ago with a porcine valve, sir.

Naomi Cline，43岁，三年前猪物瓣膜行三尖瓣置换术。

The tricuspid valve has three little flaps, or cusps.

它有三个小瓣，或尖瓣。

This one is called the tricuspid valve, and it allows blood into the right ventricle.

三尖瓣让血液得进入右心室。

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瓣和三尖瓣关闭的声音，所它可在二尖瓣和三尖瓣听诊区被清晰听到。

But, unlike the tricuspid valve, the pulmonary valve doesn't have any of those chordae tendineae.

但三尖瓣不同，脉瓣没有腱索。

When the atria contracts, blood in the right atrium is forced through the tricuspid valve into the right ventricle.

当心室收缩时，右室血液脉瓣进入脉，同时三尖瓣关闭防止血液回流至心房。

Deoxygenated blood from the body enters the heart at the right atrium and passively travels past the tricuspid valve to fill the right ventricle.

来自身体的脱氧血进入右心房的心脏，被地通过三尖瓣注入右心室。

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，三尖瓣和二尖瓣打开；让血液再次充盈心室，这段时期叫做心脏舒张期。

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；这些血将从二尖瓣及三尖瓣到心室。

Making our way down, between the fourth and fifth rib, next to the left lower border of the sternum, is where you can best hear the tricuspid valve closing.

让我们往下看，在第四肋及第五肋之间，紧靠左胸骨下缘，你可清晰听到三尖瓣关闭的声音。

That being said, that contraction pumps the blood out the pulmonary valve, which just like the tricuspid valve has three cusps and also prevents blood from going backward.

也就是说，心脏收缩将血液泵出脉瓣；三尖瓣一样，脉瓣也有三个尖瓣，也可防止血液倒流。

When the ventricle is filled, it contracts, forcing the tricuspid valve to close and forcing the blood through the pulmonary semilunar valve on its way to the lungs.

心室充盈时，收缩，迫使三尖瓣关闭，迫使血液通过半月瓣进入部。

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，三尖瓣和二尖瓣关闭时发出的声音。

When the ventricles contract, blood in the right ventricle is forced through the pulmonary semilunar valve into the pulmonary artery; at the same time, the tricuspid valve closes to prevent the backward flow of blood into the atrium.

进入脉的血液被运至，进行氧合过程，即周围环境进行氧及二氧化碳（细胞的一种代谢废物）的交换。