any of the branched tubes or vessels with elastic/muscular walls that make up the network by which oxygen-rich blood is transported from the heart to the rest of the body;
e.g. A blockage in an artery in the brain can cause a stroke.
(noun)
the major route or the most important channel in a branching network of roads, railway lines, or rivers;
e.g. Several train lines run along this artery before branching off in their own directions.