The Chambers of the heart fill to an optimal level and cardiac output increases.

心室逐渐达到理想水平，心脏输出增加。

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O. is a tunnel that connects the upper Chambers of the heart - the right atrium and the left atrium.

卵圆孔未闭会导致心脏上部腔体，即左心房和右心房之间存在一条通道连接。

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Blood pressure and oxygen measurements are taken in the four Chambers of the heart, as well as the pulmonary artery and aorta.

在心脏的四个腔里以及肺动脉和主动脉里分别测量血压和血氧。

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The upper chambers of the heart quiver or beat too fast or too slow.

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Lotem said that during the heart catheterization procedure doctors would use a thin plastic tube to insert an "umbrella-like" device that will seal the hole between the two upper chambers of the heart.

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They are designed to help the pumping action of the left ventricle - one of the four chambers that make up the heart.

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