Question

what do atria have value?​

Answer 1

Answer:

In human physiology, the atria facilitate circulation primarily by allowing uninterrupted venous flow to the heart during ventricular systole.

Explanation:

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Answer 2

Answer:

There are two atria in the human heart – the left atrium receives blood from the pulmonary (lung) circulation, and the right atrium receives blood from the venae cavae (venous circulation). The atria receive blood while relaxed (diastole), then contract (systole) to move blood to the ventricles. ... Humans have two atria.