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.
Michelle Obama, nÃ©e Robinson, the wife of Barack Obama, was born on January 17, 1964, in Chicago, Illinois. She is a lawyer and was a University of Chicago Hospital vice-president. She was the First Lady of the United States.