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.
Adult Drivers & Auto Insurance. From the time you turn 25 years old until the time you turn 65 years old, your car insurance rates are likely to gradually decrease as long as you maintain a good driving record. Additional factors that are more important than age during these years include: 1  What kind of car you drive.