Also see user session. In telecommunication, a session is a series of interactions between two communication end points that occur during the span of a single connection.
The path of blood through the heart begins with the right atrium receiving blood, which has circulated through most of the body. This blood is relatively low in oxygen because most of it has already been delivered to different organs and tissues.
This pathway is the pulmonary circuit. The pathway for the systemic circuit includes the entire body as the left. side of the heart pumps oxygen-rich blood out to the body's tissue and organs. After the bloods oxygen is depleted, it. returns to the right side of the heart via the venous system.