urination is triggered by a complex sequence of events called the ___________ reflex
exists and is an alternate of . Micturition reflex is the neurological pathways involved in urination. When your bladder fills, the detrusor muscles expand and proprioceptors within the walls of the muscle activate. It sends signals (afferent nerves) that go to your medulla and also to the parasympathetic system in the sacral spinal cord.