NEET PG DENTAL EXAM

Detailed explanation-1: -The most striking difference between pronephros versus meso-and metanephros is found in nephron architecture. The pronephros consists exclusively of non-integrated nephrons with external glomeruli, whereas meso-and metanephros are composed of integrated nephrons with internal glomeruli.

Detailed explanation-2: -Adjacent to the pronephric ducts, the intermediate mesoderm will condense to form non-functional nephron units, known as pronephroi, which will regress by day 25.

Detailed explanation-3: -Pronephros is the earliest nephric stage in humans, and constitutes the mature kidney in most primitive vertebrates. Mesonephros develops by the formation of mesonephric tubules from the intermediate mesoderm, it is the principal excretory organ during early embryonic life (4-8 weeks).