Dictionary > Metamyelocyte

Metamyelocyte

Definition
noun, plural: metamyelocytes
A cell derived from myelocyte and develops into a band cell during granulopoiesis
Supplement
A metamyelocyte is a cell in granulopoiesis (i.e. a hematopoiesis of granulocytes). Hematopoiesis is a process of forming new cellular elements, particularly red blood cells, macrophages, dendritic cells, lymphocytes, megakaryocytes, platelets, and granulocytes. The granulocytes include neutrophils, eosinophils, and basophils. In the granulocytic series, a metamyelocyte is a blood cell that transitions from a myelocyte to a band cell. In particular, the developmental stages are as follows: hemocytoblast → common myeloid progenitor (or CFU-GEMM) → CFU-GM → CFU-G → myeloblast → promyelocyte → myelocyte → metamyelocyteband cellgranulocyte.
The myelocyte develops into a metamyelocyte. The latter is characterized by the appearance of a bent nucleus. Similar to a myelocyte, the metamyelocyte does not have a visible nucleolus under a light microscope. Unlike myelocyte, a metamyelocyte does not synthesize DNA and is no longer dividing. Its size ranges from 12 to 18 μ.
Since there are three types of myelocytes: neutrophilic, basophilic, and eosinophilic, the metamyelocyte also have the corresponding types.
Word origin: meta- (“from”) + myelocyte
Synonym(s):

  • juvenile cell

See also:

  • common myeloid progenitor cell
  • myelocyte
  • band cell
  • hematopoiesis
  • granulopoiesis
  • Related term(s):

    • metamyelocytic (adjective, of, pertaining to, or relating to a metamyelocyte)


    You will also like...

    Developmental Biology
    Developmental Biology

    Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

    bryophyte - sporophyte and gametophyte
    Meiosis and Alternation of Generations

    Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

    An artist depiction of a Precambrian multicellular life form.
    The Evolution of Cell Organelles

    The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..

    Circulation
    Circulation

    The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

    Energy pyramid
    Freshwater Community Energy Relationships – Producers & Consumers

    This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

    Consciousness and behavior
    Consciousness and Behavior

    Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..