Sinoatrial node. The sinoatrial node (SAN; also known as sinus node) is a group of cells located in the wall of the right atrium of the heart.
How Do Web Browsers Work? The World Wide Web is a system of Internet servers that support specially formatted documents. Web browsers are used to make it easy to access the World Wide Web. Browsers are able to display Web pages largely in part to an underlying Web protocol called HyperText Transfer Protocol (HTTP).
HTTP and HTTPS are the only internet protocols which are used to browse. (Provided you define browsing as view websites.) HTTP and HTTPS usually depend on TCP to del â¦ iver websites to the visitor. TCP itself uses IP for routing. IP is the underlying Internet protocol to move information across the network.