Leukocytes definitions Flashcards

Cells crucial for immunity, also known as white blood cells, that defend against pathogens.

White blood cells with visible cytoplasmic granules, including neutrophils, eosinophils, and basophils.

White blood cells without visible cytoplasmic granules, including monocytes and lymphocytes.

Most abundant leukocytes, first responders to infection, capable of phagocytosis and degranulation.

Granulocytes involved in combating parasitic infections and allergic reactions.

Granulocytes that release histamine, playing a role in allergic reactions and inflammation.

Agranulocytes that can differentiate into macrophages or dendritic cells, key in phagocytosis.

Agranulocytes involved in adaptive immunity, including B cells, T cells, and NK cells.

Phagocytic cells derived from monocytes, acting as sentinel cells in tissues.

Sentinel cells that present antigens to activate adaptive immune responses.

Lymphocytes that produce antibodies as part of the adaptive immune response.

Lymphocytes that mediate cellular immunity, recognizing specific antigens.

Innate lymphoid cells that kill a variety of infected or cancerous cells.

A molecule released by basophils and mast cells, increasing capillary permeability during inflammation.

The process by which cells ingest and digest foreign particles or microbes.