This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Renal parenchyma derived embryologically from? 
Select and explain. 
A. Pronephros, B. Metanephros, C. Mesompehros, D. Cloaca
B: Metanephros
Answer: B: Metanephros 
Explanation: Development of Kidney: Secretory pa of kidney:derived from metanephrons/metanephric blastyma Collecting pa of kidney:derived from ureteric bud