A heart has two atria and two ventricles, four rooms.

心脏有两个心房与两个心室，四间房。

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Atrioventricular valves lie between the atria and ventricles, and semilunar valves are located at the bases of the two large vessels leaving the heart.

房室瓣放在心房和心室和半月瓣之间位于离开心脏的二艘大船的基地。

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This is a computed tomographic (CT) scan demonstrating enlarged lateral ventricles in a patient with hydrocephalus. This condition has been treated by placing two shunts (the thin white objects).

脑积水病人头颅CT显示侧脑室明显扩大，已放置两个分流器治疗。

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The AbioCor's motor sits between the two ventricles inside a separate chamber filled with silicone fluid.

FORBES: Lonely Heart

This is a new feature, available on some defibrillator-like devices that are now on the market, which is aimed at people with a form of heart condition that causes their two ventricles to beat slightly out of phase with each other.

ECONOMIST: Case history