Lymph nodes and what they do. Lymph vessels route lymph fluid through nodes throughout the body. Lymph nodes are small structures that work as filters for harmful substances. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid.his fluid may filter through lymph nodes at the elbow, or those under the arm. Fluid from the head, scalp, and face flows down through lymph nodes in the neck. Some lymph nodes are deep inside the body, such as between the lungs or around the bowel, to filter fluid in those areas.
Air Force Recruiting Service, headquartered at Joint Base San Antonio-Randolph, Texas, is a key component of Air Education and Training Command. The mission of Air Force Recruiting Service is to inspire, engage and recruit the brightest, most competitive and diverse men and women for service in America's Air Force. Air Force Recruiting Service recruits quality men and women from a cross-section of America, responsive to the ever-changing needs of the Air Force. The accession of a steady flow of new recruits is essential to maintain a force with the proper distribution of skills.
Air Force. The Air Force is the most recently established branch of the military and was officially established as a separate branch in 1947. Its main purpose is to support the security of the United States through air and space exploitation. It is a main supporter of ground forces by providing air support during missions.