名词解释“二尖瓣”和“三尖瓣”

宝宝妈妈2023-04-23  42

先是中文的解释~二尖瓣如同一个“单向活门”,保证血液循环由左心房一定向左心室方向流动和通过一定流量。心脏当左心室收缩时,挤压室内血液,血液冲击瓣膜。二尖瓣关闭,血液不倒入左心房。三尖瓣如同一个“单向活门”,保证血液循环由右心房一定向右心室方向流动和通过一定流量。心脏当右心室收缩时,挤压室内血液,血液冲击瓣膜。三尖瓣关闭,血液不倒入右心房。然后是英文的解释~

The mitral valve(二尖瓣) (also known as the bicuspid valve or left atrioventricular valve) is a dual-flap valve in the heart that lies between the left atrium (LA) and the left ventricle (LV). The mitral valve(二尖瓣) and the tricuspid valve(三尖瓣) are known collectively as the atrioventricular valves because they lie between the atria and the ventricles of the heart and control the flow of blood.The tricuspid valve is on the right dorsal side of the mammalian heart, between the right atrium and the right ventricle.

您是想问三尖瓣环收缩运动速度是什么吗?

三尖瓣环收缩运动速度是0.3~0.7m/s。因为三尖瓣是右心房和右心室之间的心脏瓣膜,正常情况下,血液只能从右心房到右心室进行单向流动,右心室舒张时,三尖瓣开放,右心房的血液进入到右心室,右心室收缩时三尖瓣关闭,血液进入到肺动脉,进行肺循环;正常情况下,三尖瓣口的血流速度为0.3~0.7m/s。

三尖瓣是心脏的一个重要结构,其主要的功能是保证血液循环从右心房进入到右心室。


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