Charles River Laboratories Inc. 1 article published in JoVE Medicine A Decentralized (Ex Vivo) Murine Bladder Model with the Detrusor Muscle Removed for Direct Access to the Suburothelium during Bladder Filling Leonie Durnin1,2, Robert D. Corrigan1, Kenton M. Sanders1, Violeta N. Mutafova-Yambolieva1 1Department of Physiology and Cell Biology, University of Nevada Reno School of Medicine, 2Charles River Laboratories Inc. The detrusor-free bladder model enables direct access to the suburothelium to study local mechanisms for regulation of biologically active mediator availability in suburothelium/lamina propria during storage and voiding of urine. The preparation closely resembles filling of an intact bladder and allows pressure-volume studies to be performed without systemic influences.