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.
Pathway of blood through the heart. 1. Blood enters the right atrium from the superior and inferior venae cavae, and the coronary sinus. 2. From right atrium, it goes through the tricuspid valve to the right ventricle. 3. From the right ventricle, it goes through the pulmonary semilunar valves to. the pulmonary trunk. 4. From the pulmonary trunk it moves into the right and left pulmonary. arteries to the lungs. 5. From the lungs, oxygenated blood is returned to the heart through the. pulmonary veins.