Question

Ureteric bud develops from:

• A. Mesonephros
• B. Metanephros
• C. Pronephros
• D. Genital sinus

Answer 1

The Correct Option is A

The ureteric bud is an important structure in the development of the urinary system. It differentiates from the mesonephros, which is part of the early embryonic kidney structures. The main steps involved in its development include:

1. Origination: The ureteric bud arises as a diverticulum from the mesonephric duct, which is part of the mesonephros.
2. Interaction: It interacts with the metanephric blastema to initiate the formation of the metanephros, which develops into the definitive kidney.
3. Branching: The ureteric bud undergoes a series of branching morphogenesis, forming the ureter, renal pelvis, calyces, and collecting ducts.

Understanding these steps highlights the role of the mesonephros in the development of the ureteric bud.