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
Astronomically, midsummer is the day of the summer solstice, or longest day, which usually falls on June 20 or 21. 2. The last time it did not fall on either of those dates was in 1975 when it was June 22. 3. When the date of June 24 was set, the Julian calendar was in operation and was a few days out. 4. Midsummerâs Day (June 24) is one of the four Quarter Days in the Legal calendar. The others are Lady Day (March 25), Michaelmas (September 29) and Christmas Day (December 25). 5. Samuel Pepys described Shakespeareâs Midsummer Nightâs Dream as âthe most insipid, ridiculous play that ever I sawâ...