Neutrophils are (white blood cells) of the
Neutrophils form a primary defense against bacterial infection. Like all the cells of the , neutrophils are produced in the
and circulate in the bloodstream. However, neutrophils move out of blood vessels into infected tissue in order
to attack the foreign substance ( , bacteria, etc.).
Normally a serious bacterial infection causes the body to produce an increased number of neutrophils,
resulting in a higher than normal .
Neutrophils perform their function partially through phagocytosis, a process by which they "eat" other cells
and foreign substances. The pus in a boil (abscess) is made up mostly of neutrophils.