Van Asselt, Els, Joost le Feber, and Ron van Mastrigt. Threshold for efferent bladder nerve firing in the rat. Am. J. Physiol. 276 (Regulatory Integrative Comp. Physiol. 45): R1819–R1824, 1999.—In this study, the mechanism involved in the initiation of voiding was investigated. Bladder pressure and bladder and urethral nerve activity were recorded in the anesthetized rat. Bladder nerve activity...