What is the difference between auricles,atria and atrium?

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Feb 4, 2018

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Atrium: each of the upper two compartments(left & right) of the heart,from which blood enters into the two lower compartments (left and right ventricles) of the heart through the bicuspid and tricuspid valves respectively.

Atria : is the plural form of atrium. so this would be used when referring to both the left atrium and right atrium together.

Auricles: are small muscular appendages found in each atrium.

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