vesicula umbilicus
Definition
- Noun:
- Embryonic circulatory structure: The vesicula umbilicus is a membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional. It is a temporary organ involved in early blood circulation.
Usage Examples
- Noun:
- The vesicula umbilicus is a critical structure for embryonic development before the heart takes over.
- Researchers studied the function of the vesicula umbilicus in the early-stage embryo.
Advanced Usage
- In embryology: The term is used in technical descriptions of mammalian embryonic development.
- The study focused on the regression of the vesicula umbilicus as the fetal heart matured.
Variants and Related Words
- Yolk sac: This is a common synonym and the more frequently used term in modern embryology for the same structure.
- The yolk sac, or vesicula umbilicus, is an early site of blood cell formation.
Synonyms
- Yolk sac: The primary synonym, referring to the same embryonic structure.
- Umbilical vesicle: Another technical term for the same anatomical feature.
Notes on Meaning
This is a highly specialized anatomical and embryological term. In modern scientific English, "yolk sac" is the standard and more commonly used term. "Vesicula umbilicus" is derived from Latin and may be found in older or very specific technical literature.
Noun
-
membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
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