Respuesta :

Answer:

The atria and ventricles are separated by the mitral and bicuspid valves.

Explanation:

The atria undergo atrial systole, a brief contraction of the atria that ejects blood from the atria through the valves and into the ventricles.

daboi33
I believe the separation of the atriums and ventricles are the tricuspid valve for the right and the mitral valve for the left.

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