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.
Obama Sr. lied to her that heâd divorced his African wife and mother of four of his children. Six months later, in Honolulu, on 4 August 1961, Barack Obama was born. But Obama Sr. again put academia before his second family by leaving for a Harvard scholarship.