History. 1  Among first inhabitants were the Penteka. 2  1849 Capt. Randolph Marcy, U. S. Army engineer passes through scouting out West Texas to California routes. 3  1858 The Texas legislature establishes Taylor County from Bexar and Travis counties. The county is named for Alamo defenders Edward, James, and George Taylor.
When an antibody attaches to an antigen, it helps the body destroy or inactivate the antigen. antigen âa substance or molecule that is recognized by the immune system. The antigen can be from foreign material such as bacteria or viruses.antiserum âa serum rich in antibodies against a particular microbe.nnate âan immune system function that is inborn and provides an all-purpose defense against invasion by microbes. interferon âa protein produced by cells that stimulates antivirus immune responses or alters the physical properties of immune cells.
Through a series of steps called the immune response, the immune system attacks organisms and substances that invade body systems and cause disease. The immune system is made up of a network of cells, tissues, and organs that work together to protect the body. One of the important cells involved are white blood cells, also called leukocytes, which come in two basic types that combine to seek out and destroy disease-causing organisms or substances.