Exodus-the second book of the Old Testament: tells of the departure of the Israelites out of slavery in Egypt led by Moses; God gave them the Ten Commandments and the rest of Mosaic law on Mount Sinai during the Exodus.
Pulmonary circulation is the movement of blood from the heart, to the lungs, and back to the heart again. Deoxygenated blood leaves the heart, goes to the lungs, and then re-enters the heart; Deoxygenated blood leaves through the right ventricle through the pulmonary artery.
Two pumps (in a single heart) one to pump deoxygenated blood to the lungs; the other to pump oxygenated blood to all the other organs and tissues of the body. Link to discussion of the control of the heartbeat. A system of blood vessels to distribute blood throughout the body.