Urea, together with water and other waste substances, forms the urine as it passes through the nephrons and down the renal tubules of the kidney. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The ureters are about 8 to 10 inches long. Muscles in the ureter walls constantly tighten and relax to force urine downward away from the kidneys. If urine is allowed to stand still, or back up, a kidney infection can develop.
SAGITTARIUS (November 23-December 21) LUCKY DAY: Thursday THE per fect woman for a Sagittarian man is a Gemini - which is why Brad Pitt and Angelina Jolie are Hollywood's golden couple. Celebs with stars in their (sex) lives; New PEOPLE astrologer Claire Petulengro takes a look at what 2009 holds for some of the biggest names
January 24th is on record as being the most depressing day of the year. Itâs not hard to figure out why. The bills come in from all those generous gifts you gave back when the holiday spirit had you feeling rich. The resolutions you made on December 31 are, well, broken. And itâs cold, dark, and dreary â the roads in many places wear the kind of brown slush that is unbecoming. However, my mood dips long before the 24th. It does a dive the Monday after the New Year â the first full week of January. I call it Yuck Monday or Yuck Week.