Urine is produced in the kidneys (approximately 2 litres per day). It is then carried down long tubes called ureters to the bladder where it is stored. Urine flows continually into the bladder from the ureters and during the course of a normal day the bladder will gradually fill.
Michelle LaVaughn Robinson Obama is an American lawyer and writer who was First Lady of the United States from 2009 to 2017. She is married to the 44th President of the United States, Barack Obama, and is the first African American First Lady. Raised on the South Side of Chicago, Illinois, Obama is a graduate of Princeton University and Harvard Law School, and spent her early legal career working at the law firm Sidley Austin, where she met her husband. She subsequently worked as the Associate D
Barack Obama is the first African-American to be elected President of the United States with his wife Michelle Robinson Obama being the first African-American to become First Lady. Before being elected President, Obama was the junior U.S. Senator from Illinois. He is a graduate of Columbia University and Harvard Law School, where he was the first African-American to head up the Harvard Law Review. Barack Obama was born on August 4, 1961 in Honolulu, Hawaii. His parents were Barack Hussein Obama, Sr. and Stanley Ann Durham.