Meaning of pronephron | Babel Free

Definitions

The first part of the urogenital system to be differentiated in a vertebrate embryo, which functions as a simple excretory organ in simpler forms, serves as a provisional kidney in some fish and amphibians, and only appears as a temporary embryonic structure in reptiles, birds, and mammals.

Examples

“In addition, while in the pronephron only vacuolization was noted, the structure⟳ of the liver had an atypical appearance and there was a considerable number⟳ of erythrocytes scattered among the hepatic chords which themselves were noticeably altered.”

“The whole problem turned around a detailed understanding of the so-called Wolffian body, what modern textbooks in embryology designate as the pronephron and its associated Wolffian or pronephric ducts.”

“Regression of the first clusters occurs before the total number⟳ of pronephron structures is established. The pronephrons induce the development of the mesonephrons. As the pronephrons regress, the mesonephrons appear⟳.”

CEFR level