HYPOBLASTIC FOLD Meaning and
Definition
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Hypoblastic fold refers to a developmental process that occurs during embryogenesis, specifically in the early stages of gastrulation in vertebrates. Gastrulation is a critical phase in embryonic development when the single-layered blastula begins to form distinct germ layers, which ultimately give rise to different tissues and organs of the body.
During gastrulation, the cells in the blastula undergo a series of complex movements and differentiations. The hypoblastic fold specifically refers to the infolding of cells that will eventually give rise to the endoderm, the innermost germ layer. The endoderm contributes to the formation of the digestive tract, respiratory system, and other internal organs.
As the hypoblastic fold occurs, cells from the outer layer of the blastula migrate inward towards the central region, eventually forming a hollow structure known as the archenteron. This cavity, lined by endodermal cells, is the precursor to the future gastrointestinal tract. The folding process also involves the extension and migration of some cells towards the animal pole, giving rise to the mesoderm, another germ layer that contributes to various structures such as muscles, bones, and connective tissues.
Overall, the hypoblastic fold is a crucial event in early embryonic development, allowing for the establishment of the endoderm and the formation of the primary structures necessary for the development of the internal organs. Understanding this process is fundamental to elucidating the mechanisms underlying embryogenesis and the subsequent formation and functioning of tissues and organs in multicellular organisms.
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A folding over of the hypoblast giving origin to the notochord.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for HYPOBLASTIC FOLD
- hypoblastic fond
- hypoblastic fomd
- hypoblastic folt
- hypoblastic foll
- h ypoblastic fold
- hypo blastic fold
- hypob lastic fold
- hypobl astic fold
- hypobla stic fold
- hypoblas tic fold
- hypoblast ic fold
- hypoblasti c fold
- hypoblastic f old
- hypoblastic fo ld
- hypoblastic fol d
Etymology of HYPOBLASTIC FOLD
The term "hypoblastic fold" is a specific scientific term used in the context of embryology and developmental biology. It is derived from two components: "hypo" and "blast".
1. "Hypo" comes from the Greek prefix "hypo-", which means "under" or "below". It is commonly used in scientific terminology to indicate a position beneath or lower than something else.
2. "Blast" is derived from the Greek word "blastós", meaning "germ" or "a developing organism". In embryology, the term "blast" is often associated with early embryonic development, specifically the cellular mass called the blastula.
Together, "hypoblastic" refers to a layer of cells located beneath or lower than another layer, specifically in embryonic development.
The term "fold" in this context refers to a folding or bending of a layer of cells during embryonic development.
