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.
Purchase of a product other than USAA auto or property insurance, or purchase of an insurance policy offered through the USAA Insurance Agency, does not establish eligibility for, or membership in, USAA property and casualty insurance companies.se of the term member or membership does not convey any eligibility rights for auto and property insurance products, or legal or ownership rights in USAA. Membership eligibility and product restrictions apply and are subject to change.