How to use in-sentence of “atrium”:
– Atria is talking about two chambers; atrium is talking about one chamber.
– The atrium was open in the centre, surrounded at least in part by porticoes with high ceilings, that often contained only a little furniture to give the effect of a large space.
– The left atrium and ventricle send the blood out to the body.
– The veins going into the left atrium are the “pulmonary veins”.
– The blood then flows from the atrium into the ventricle.

