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Introduction to Cells of the Immune System definitions Flashcards

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Introduction to Cells of the Immune System definitions
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  • Sentinel cells

    Guard cells in the immune system that detect invading microbes using censoring systems.
  • Innate effectors

    Cells that eliminate identified microbes, acting as security soldiers in the immune response.
  • Hematopoiesis

    The process of developing blood cells from hematopoietic stem cells in the bone marrow.
  • Hematopoietic stem cells

    Cells in the bone marrow that differentiate into common myeloid and lymphoid progenitor cells.
  • Common myeloid progenitor

    A cell type derived from hematopoietic stem cells that differentiates into various blood cells.
  • Common lymphoid progenitor

    A cell type derived from hematopoietic stem cells that differentiates into lymphocytes.
  • Erythrocytes

    Red blood cells responsible for carrying oxygen throughout the body.
  • Platelets

    Cell fragments important for blood clotting, derived from myeloid progenitor cells.
  • Leukocytes

    White blood cells crucial for the immune system, divided into granulocytes and agranulocytes.
  • Granulocytes

    A group of leukocytes including neutrophils, eosinophils, and basophils.
  • Agranulocytes

    A group of leukocytes including lymphocytes such as T cells, B cells, and natural killer cells.
  • Natural killer cells

    Lymphocytes part of innate immunity, responsible for destroying infected or cancerous cells.
  • T cells

    Lymphocytes part of adaptive immunity, involved in cell-mediated immune responses.
  • B cells

    Lymphocytes part of adaptive immunity, responsible for producing antibodies.
  • Pattern recognition receptors

    Molecules on sentinel cells that detect microbial components and initiate immune responses.