gastrula
- noun
- /ˈɡæstrʊlə/
- Specialized
:
gastrula
- During the embryonic stage, the gastrula develops after the blastula, setting the foundation for future organ systems.
- gastrula cells
- early gastrula
Examples
-
Later, however, when they tested early gastrula nuclei (Briggs and King 1960), they did rear tadpoles and showed that the majority metamorphosed into normal juvenile frogs.
Academic text (1999) -
Early gastrula cells that are fated to give rise to the neural plate if left in place will, if grafted to a site destined to give rise to epidermis, develop as epidermis.
Academic text (1999) -
But after the gastrula is formed, OK, by an invagination of the, of the, the blastula, the gastrula forms and then the narrow plate appears.
-
Thus, late gastrula cells, although not yet differentiated as neural cells, are determined to follow a neural pathway (Spemann 1938).
Academic text (1999) -
On the other hand, late gastrula cells that are destined to give rise to the neural plate differentiate into neural cells when placed in anatomically inappropriate sites.
Academic text (1999) -
The gastrula is a critical phase in embryonic development, where two or more layers of cells are formed.
-
In biology classes, students learn that the gastrula represents an important transition in the early stages of animal development.
How Developed
- Specialized
163
4.1
- Specialized
- Specialized
- Specialized
- Specialized
13
8.2
Surface Forms
Morphology
gastrula = gastric (opaque) = gastr + ula
Built from the combining form 'gastr-' (stomach) plus the Latin diminutive '-ula'; these are technical combining forms not transparent to average learners.
Etymology
Gastrula comes from the Greek root gaster, meaning 'stomach', so it literally means 'little stomach'. You can see the same root in gastric, which is 'related to the stomach', and that fits because at the gastrula stage the embryo makes its first inner layers and a simple 'gut'.