Atrium -

: Receives oxygenated blood from the lungs and empties it into the left ventricle.

Several modern technical platforms and initiatives use the name "Atrium":

Steps in Atrium Integrator transformation - BMC Documentation atrium

: In ancient Rome, it was the central hall of a house, often containing a pool to catch rainwater.

: An open-source multiplatform expectation library for Kotlin designed to help developers verify code behavior. : Receives oxygenated blood from the lungs and

: A tool within the BMC Helix CMDB ecosystem used for transferring and transforming data from external stores.

: A research initiative focused on data traceability and "Automatic Text Recognition" (ATR) to extract content from historical manuscripts. : A tool within the BMC Helix CMDB

In the human heart, the atria are the two upper chambers responsible for receiving blood and pumping it into the lower ventricles.