Describe what happens to micturition in spinal cord injury ?.


COCLUSION: Following bilateral lesions to the spinal cord,the bladder initially becomes flaccid( acute) and eventually becomes spastic ( chronic ).The reason for this is that the detrussor muscle of the bladder loses its cortical inputs. Like the deep tendon reflexes,it initially becomes flaccid,resulting in urinary retension. As the bladder fills,overflow incontinence may develop because the bladder cannot hold any more urine. As this passes the detrusor muscle becomes spastic ( just like the deep tendon reflexes become hyperactice).Small stretches in the detrusor muscle result in voiding. The spastic bladder results in urinary frequency and urgency.

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