Which part of the body does the adjective "renal" refer to?

More Questions:

What sign of the zodiac is represented by a bull?

What sort of meat is used in the dish "Guard of Honour"?

Who was poet Sylvia Plath married to?

What children's literature character is usually accompanied by his canine pal Ribsy?

What city is home to the Rose Tower?

What is the only rock that will float on water?

What is the worlds fastest dog?

In season 13 of the Big Brother show, half of this duo was the first eliminated and the other half remained?

What 1973 movie sparked the careers of Harrison Ford, Richard Dreyfuss, Mackenzie Phillips, and Cindy Williams?

What actor played the leading role in "The Good, the Bad, and the Ugly"?

Which TV character owns a talking cat called Salem?

Who voiced the character Gru from the animated movie "Despicable Me"?

What object lands in Donnie Darko's bedroom?

What were the Crusades?

The "Eisner Award" is named after which influential cartoonist and writer?