Primitive ventricle
Primitive ventricle is a term used in embryology to refer to the early stage of the heart development in the embryo. The primitive ventricle is one of the first recognizable structures in the developing heart, and it eventually gives rise to the left ventricle of the adult heart.
Etymology[edit | edit source]
The term "primitive ventricle" comes from the Latin primitivus, meaning "first formed", and ventriculus, a diminutive of venter, meaning "belly" or "cavity". This reflects the fact that the primitive ventricle is one of the first structures to form in the developing heart.
Development[edit | edit source]
The primitive ventricle forms during the third week of gestation from the cardiac tube, a simple tube-like structure that is the precursor to the heart. The cardiac tube initially has a uniform diameter, but it soon begins to expand in certain areas and constrict in others, forming a series of dilations and constrictions. The primitive ventricle is one of these dilations.
As development progresses, the primitive ventricle begins to expand and change shape. It eventually gives rise to the left ventricle of the adult heart, while the other parts of the cardiac tube give rise to the rest of the heart's structures.
Related terms[edit | edit source]
- Cardiac tube: The precursor to the heart, from which the primitive ventricle forms.
- Gestation: The period of time between conception and birth, during which the embryo develops.
- Embryo: The early stage of development in multicellular organisms.
- Heart: The organ that pumps blood throughout the body.
See also[edit | edit source]
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