This is the most important transport mechanism in the PCT. The proximal tubule is the portion of the duct system of the nephron leading from Bowman's capsule to the loop of Henle. Structure and appearance The most distinctive characteristic of the proximal tubule is its brush border (or striated border).The luminal surface of the epithelial cells of this segment of the nephron is covered with densely packed microvilli forming a border readily visible under the light microscope.tructure and appearance The most distinctive characteristic of the proximal tubule is its brush border (or striated border). The luminal surface of the epithelial cells of this segment of the nephron is covered with densely packed microvilli forming a border readily visible under the light microscope.
President Barack Obama and Michelle Obama celebrated their 23rd wedding anniversary on Saturday. The two were married on Oct. 3, 1992, at Trinity United Church in Chicago. A year later, Michelle apparently forgot the couple's first wedding anniversary. First lady Michelle Obama and President Barack Obama have been married for over two decades. Over time, Michelle has said that she has learned to forgive some of the president's habits.
He was elected the 44th President of the United States on November 4, 2008, and sworn in on January 20, 2009. After being re-elected in 2012, President Obama is currently serving his second and final term, which will end in January 2017. See photos from the President's second inauguration here.President Obama and his wife, Michelle, are the proud parents of two daughters, Malia and Sasha. Learn more about President Obama's spouse, First Lady Michelle Obama. Follow President Obama on Twitter at @POTUS.ee photos from the President's second inauguration here. President Obama and his wife, Michelle, are the proud parents of two daughters, Malia and Sasha. Learn more about President Obama's spouse, First Lady Michelle Obama.