Myeloid

The term myeloid suggests an origin in the bone marrow or spinal cord, or a resemblance to the marrow or spinal cord.

In hematopoiesis, the term "myeloid cell" is used to describe any leukocyte that is not a lymphocyte. This terminology is frequently seen when classifying cancers, especially leukemia.

It should not be confused with "myelin", which is an insulating layer covering the axons of many neurons.

[edit] See also

v • d • e Immune system / Immunology

Systems	Adaptive immune system vs. Innate immune system • Humoral immune system vs. Cellular immune system • Complement system (Anaphylatoxins) • Intrinsic immune system

Antibodies and antigens	Antibody (Monoclonal antibodies, Polyclonal antibodies, Autoantibody) • Allotype • Isotype • Idiotype • Antigen (Superantigen) • Polyclonal response

Immune cells	White blood cells (T cell, B cell, NK cell, Mast cell, Basophil, Eosinophil) • Phagocyte (Neutrophil, Macrophage, Dendritic cell) • Antigen-presenting cell • Reticuloendothelial system

Immunity vs. tolerance	Immunity • Autoimmunity • Allergy • Tolerance (Central) • Immunodeficiency

Immunogenetics	Somatic hypermutation • V(D)J recombination • Immunoglobulin class switching • MHC/HLA

Substances	Cytokines • Opsonin • Cytolysin

Other	Inflammation • Epitope (Hapten) • Cross-reactivity • Diagnostic immunology

v • d • e Blood

General	Plasma - Hematopoietic stem cells

Lymphoid - WBC	T cells: Cytotoxic CD8⁺, Helper CD4⁺/Regulatory, γδ, Natural Killer T cell B cells: Plasma, Memory Natural killer cells (Lymphokine-activated killer cell) Null cell

Myeloid - WBC	Monocytes/Macrophages (Histiocytes, Kupffer cells, Langhans giant cells, Microglia, Osteoclasts) Granulocytes (Neutrophil, Eosinophil, Basophil) - Mast cell precursors Dendritic cells (Langerhans cells, Follicular dendritic cells Megakaryoblast - Megakaryocyte - Platelets

Myeloid - RBC	Reticulocyte - Normoblast

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