My wife is in the midst of studying for the nursing boards, the NCLEX exam. To help prepare we ordered some flashcards. One question in the set asks the student to describe the structure and function of the kidney. The answer it suggests is in part "The kidney is composed of several years and is covered with a fibrous capsule, the renal capsule." So it is pretty likely that the kidney is composed more of layers than years but what's a little spell-check error between friends.
What is interesting is the answer on the flash card (which is printed with the copyright "Morrison Media" is verbatim the description of the kidney from Jim Swan's webanatomy.net.
I guess one question now is did this 'author' copy the right stuff to help one pass the NCLEX?