What are the three folds of the small intestine called? What is their purpose?

Video transcript

Everyone. Let's take a look at this question together which type of folds in the small intestine are visible to the naked eye and help increase surface area. Is it answer choice? A circular folds. Answer choice B villa answer choice C micro Vli or answer choice D crypts. Let's work this problem out together to try to figure out which of the following answer choices is a type of fold in the small intestines that are visible to the naked eye and help increase surface area. So in order to solve this question, we have to recall the different types of folds in the small intestine and which type helps increase surface area while still being visible to the naked eye. And we know that the small intestine has folds that are large transverse ridges in the mucosa and the submucosa layers, which these folds that are large transverse ridges help increase the surface area for the absorption of nutrients. And the name for those folds that are large transverse ridges in the mucosa. And the submucosa layers that increase the surface area or the absorbed of nutrients are circular folds also called ple circulars or valvula conti which means that answer choice. A circular folds is the correct answer. And all other answer choices are incorrect since Vili micro V and crypts are all microscopic structures that are not visible to the naked eye. So they are all incorrect. I hope you found this video to be helpful. Thank you and goodbye.