Urine
Urine or urination is urine bladder from the bladder through the urine to the outside of the body. In healthy people this process is under voluntary control. In infants, some individuals are older, and those who are neurologically infected, urinary may occur as an external reflex. In other animals, in addition to the removal of waste, the urine may mark the region or express its submissive nature. Physiologically, urine involves coordination between central nervous system, automatic, and somatic nervous system. The central urinary control center includes pontin urinary center, periakeductic gray, and cerebral cortex. In male-grade mammals, urine is stripped through the penis. In mammalian berry female, urine can be stripped through the vulva.