For other uses, see Atrium. The atrium (plural: atria) is a blood collection chamber of the heart. It was previously called the auricle, and that term is still used to describe this chamber in, for example, the Mollusca, but in humans that name is now used for an appendage of the atrium.
1 Adult children whose eligible parents have or had a USAA auto or property insurance product.*. 2  Widows and widowers of USAA members who have or had a USAA auto or property insurance policy. * Children must be 18 years or older to be eligible for USAA membership and purchase products in their own name.
You didn't mention if you were seeking membership in order to get auto or home insurance. If that's your reason for joining USAA, then be sure to shop around for better rates. I was a USAA member for more than 20 years and always got the best auto insurance rates through them. On my last renewal a month ago, they jacked my rates nearly 40% with absolutely no changes in my policy. I moved to MetLife and cut my premium to far less than what USAA was asking.