Primordium
Primordium
Primordium (pronunciation: pri-mor-di-um) is a term used in biology and embryology to describe an organ or tissue in its earliest recognizable stage of development. Cells of the primordium are called primordial cells. A primordium is the simplest set of cells capable of triggering growth of the would-be organ and the initial foundation from which an organ is able to grow.
Etymology
The term "primordium" is derived from the Latin word "primordialis," which means "first to appear." It is a combination of "primus" (first) and "ordior" (to begin).
Related Terms
- Organogenesis: The process of organ formation from the primordium.
- Morphogenesis: The biological process that causes an organism to develop its shape, including the development of a primordium.
- Histogenesis: The formation of different tissues from the primordial cells.
- Embryogenesis: The process by which the embryo forms and develops, starting from a single-celled zygote to a multicellular organism. During this process, primordium plays a crucial role in organ development.
See Also
External links
- Medical encyclopedia article on Primordium
- Wikipedia's article - Primordium
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