Question

Which of the following sentences will be the actual definition of folds of Kerckring?

(a) Folds of the intestinal mucosa

(b) Finger-like projections whose other name is villi

(c) Protruding surface from the villi

(d) Cilia over the surface of villi

The question was asked by my college professor while I was bunking the class.

Question is taken from Drugs Absorption from Non Oral Extravascular Sites in section Absorption of Drugs of Drug Biotechnology

Answer 1

Correct answer is (a) Folds of the intestinal mucosa

Easiest explanation: The fold of the intestinal mucosa is known as the folds of Kerckring. This result in a 3 fold increase in the intestinal surface area. The surface of these folds possesses finger-like projections known as villi. The surface of villi, from each absorptive cell several microvilli protrudes thus increasing the surface area 6000 times.