In humans there are 12 pair of ribs .The 8th 9th and 10th pair of ribs are called false ribs as the are connected to the 7th rib by a cartilage. And 11th and 12ths pair of ribs are called floating ribs.
White coated tongue is a common sign of fungal infection known as Oral Thrush. As it is mostly caused by overgrowth of fungus called Candida, this condition is also referred to as Candidiasis of the mouth and throat.
A coated or white tongue occurs when the surface is colonised by bacteria or fungi, and dead cells become trapped between the small nodules on the tongue. A coated tongue isn't a disease and isn't usually a sign of anything serious. It's usually only temporary.