The urinary bladder is innervated by two anatomically distinct populations of sensory neurons originating from dorsal root ganglia (DRG): one from the thoracolumbar (TL) and another from the lumbosacral (LS) spinal region. While we previously characterized the morphology and distribution of sensory endings arising from LS DRG, the terminals of TL afferents remain undefined. In this study, we employed anterograde neuronal traci...