The immune system is a system of many biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue.nflammation is one of the first responses of the immune system to infection. The symptoms of inflammation are redness, swelling, heat, and pain, which are caused by increased blood flow into tissue. Inflammation is produced by eicosanoids and cytokines, which are released by injured or infected cells.
Converting PST to EST. This time zone converter lets you visually and very quickly convert PST to EST and vice-versa. Simply mouse over the colored hour-tiles and glance at the hours selected by the column... and done! PST stands for Pacific Standard Time. EST is known as Eastern Standard Time. EST is 3 hours ahead of PST.
The Pacific Time Zone and Central Time Zone occupy the western and midwestern United States respectively and are separated by the Mountain Time Zone and two hours time difference. The Pacific Time Zone occupies the West Coast of the U.S. and is two hours behind the Central Time Zone. For example, when it is noon in the Central Time Zone, it is 10 a.m. in the Pacific Time Zone. The Pacific Time Zone includes all of Washington, California, Nevada, most of Oregon and the northern tip of Idaho. Major cities include Seattle, Las Vegas and Los Angeles.