Surgical technologists and technicians are a critical part of surgical teams in hospitals and clinics. The surgical supply technician is a surgical technician who is specifically responsible for providing sterile instruments to the team. In some settings, a surgical supply technician is sometimes referred to as a central service technician or a sterile supply technician.
White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells.
White blood cells. White blood cells are much less common than red blood cells. There are five types of white blood cell (leucocyte). These are divided into two main classes. 1  Granulocytes (includes Neutrophils, Eosinophils and Basophils). 2  Agranulocytes (includes Lymphocytes and Monocytes).ymphocyte. These are the second most common white blood cell (20-50%), and are easy to find in blood smears. Although the cells look similar there are two main types, B-cells and T-cells. B-cells develop in the bone marrow.