Lower Urinary Tract

Early Genitourinary System

Male Reproductive System

Female Reproductive System



Organ Summary - Lower Urinary Tract (LUT)


Lower Urinary Tract

primitive bladder




The development of the murine bladder

Before discussion of the development of the external genitalia, it is appropriate to discuss the development of the bladder here. As will be seen, this is a complex organ. It initially has a common origin with the caudal part of the hindgut, and is first evident at about TS15 (9.5 dpc). By about TS17 (10.5 dpc), this whole region then dilates to form the cloaca, and accordingly initially possesses an endodermal lining. (moreā€¦)


Bladder (Theiler Stage 21)


Bladder (Theiler Stage 23)