The plural form of the word atrium is atria. The atria are the two upper cavities of the heart from which blood is passed to the ventricles.
Atria is the plural for of atrium. Not the other way around.
Since it is a Latin word the proper plural rendering would be "atria." Some dictionaries simply add an -s to "atrium," though it doesn't sound right.
Atria is plural for Atrium. You have your (rt)Atrium and (lt)Atrium
Atrium is singular - the plural is atria.
Atria is simply the plural of atrium
The plural is atria. This can be used architecturally or with reference to chambers of the heart.
The right atrium and left atrium (plural atria) are the upper chambers of the heart. They are superior to the right and left ventricles, respectively.
The Atria and Atrium
the upper chambers of the heart are called the atria. (or atrium singular)
Atrium? plural: atria
The atrium. (Plural: atria.)
The upper two chambers of the heart are the right atrium or auricle, and the left atrium or auricle.