Provided video presents a detailed account on the micturition reflex along with urine physiology and pathology.The knowledge of micturition and urine composition helps in the diagnosis of various diseases. Timeline: 0:10 anatomy of the urinary bladder and urethra 01:48 the process of micturation for nearly empty bladder 15:13 the process of micturation for nearly full bladder 29:00 the voiding process 29:13 physiological composition of urine 30:05 pathological composition of urine and its etiology 36:18 summary