Flashcards: Leukocytes

Agranulocytes, also known as mononuclear leukocytes, are white blood cells with a one-lobed nucleus.

Leukopenia (also known as leukocytopenia or leucopenia, from Greek λευκός "white" and πενία "deficiency") is a decrease in the number of white blood cells (leukocytes) found in the blood, which places individuals at increased risk of infection.

Monocytes are a type of white blood cell, or leukocyte.

A megakaryoblast is a precursor cell to a promegakaryocyte, which in turn becomes a megakaryocyte during haematopoiesis.

A myelocyte is a young cell of the granulocytic series, occurring normally in bone marrow (can be found in circulating blood when caused by certain diseases).

A promyelocyte (or progranulocyte) is a granulocyte precursor, developing from the myeloblast and developing into the myelocyte.

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.

A mast cell (also known as a mastocyte or a labrocyte) is a type of white blood cell.

A band cell (also called band neutrophil or stab cell) is a cell undergoing granulopoiesis, derived from a metamyelocyte, and leading to a mature granulocyte.

A metamyelocyte is a cell undergoing granulopoiesis, derived from a myelocyte, and leading to a band cell.

Monocytopenia is a form of leukopenia associated with a deficiency of monocytes.

Plasma cells, also called plasma B cells, plasmocytes, plasmacytes, or effector B cells, are white blood cells that secrete large volumes of antibodies.

A megakaryocyte (mega- + karyo- + -cyte, "large-nucleus cell") is a large bone marrow cell with a lobulated nucleus responsible for the production of blood thrombocytes (platelets), which are necessary for normal blood clotting.

Monoblasts are normally found in bone marrow and do not appear in the normal peripheral blood.

Monocytosis is an increase in the number of monocytes circulating in the blood.

Neutropenia or neutropaenia, is an abnormally low concentration of neutrophils (a type of white blood cell) in the blood.

Cathelicidin-related antimicrobial peptides are a family of polypeptides found in lysosomes of macrophages and polymorphonuclear leukocytes (PMNs), and keratinocytes.