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).
follow these simple steps to determine what browser version is installed on your computer a web browser is a software application that allows you to retrieve search for and explore information on the internet common browsers include internet explorer firefox safari google chrome and aol desktop