The predominant polymorphonuclear leukocyte comprising up to 70% of the peripheral white blood cells. It is important in infection and injury repair, and may have impaired function in some forms of early‐onset periodontitis.
A type of white blood cell, specifically a form of granulocyte.
A type of white blood cell with an irregular nucleus, which can attack and destroy bacteria.
Innate immune cells that phagocytize pathogens.
Phagocytic (ingesting, scavenging) white blood cells that are produced in the bone marrow. They ingest and destroy invading microorganisms and facilitate post-infection tissue repair. They can secrete collagenase and plasminogen activator. They are the immune system’s “first line” of defense against invading pathogens, and large reserves are called forth within hours of the start of a “pathogen invasion.”
Another name for polymorphonuclear leukocytes, the most common type of blood-carried white blood cell, and the first mobile resistance cell to come to the rescue in injury.
Granular leukocyte (white blood cell). Neutrophils are phagocytes engulfing bacteria and cellular debris. An increase in the number of neutrophils occurs in acute infections, certain malignant neoplastic diseases, and some other disorders.
A mature white blood cell formed in the bone marrow.
A variety of granulocyte (a type of white blood cell) distinguished by a lobed nucleus and the presence in its cytoplasm of fine granules that stain purple with Romanovsky stains. It is capable of ingesting and killing bacteria and provides an important defense against infection. There are normally 2.0-7.5 X 10⁹ neutrophils per liter of blood.
A granular white blood cell (WBC), the most common type (55% to 70%) of WBC. Neutrophils are responsible for much of the body’s protection against infection. They play a primary role in inflammation, are readily attracted to foreign antigens (chemotaxis), and destroy them by phagocytosis. Neutrophils killed during inflammation release destructive enzymes and toxic oxygen radicals that eradicate infectious microorganisms. An inadequate number of neutrophils (neutropenia) leaves the body at high risk for infection from many sources and requires protective precautions on the part of health care workers. Cancer patients receiving chemotherapy, which destroys leukocytes, must be carefully protected from infections during the course of therapy and until the bone marrow produces additional leukocytes.
The most common leukocyte of the natural immune system.
Neutrophils, a type of segmented white blood cell, typically make up 50-70% of the total white blood cell count. These cells possess cytoplasm that contains primary and secondary granules, which readily absorb both acidic and basic dyes used in the Wright stain. Neutrophils are responsible for the removal and destruction of bacteria through the process of phagocytosis.
Neutrophils are a kind of phagocyte, cells within the immune system. They play a crucial role in defending the body by consuming and eliminating harmful bacteria.
A white blood cell with granules that can be stained using neutral dyes, the most common type being the polymorphonuclear leukocyte.
A type of granular white blood cell with a nucleus divided into three to five lobes connected by thin chromatin threads, and cytoplasm filled with fine, barely noticeable granules. Neutrophils are characterized by their abilities for chemotaxis, sticking to immune complexes, and engulfing foreign particles (phagocytosis).