In the Jejunum of the Small intestine.
The plicae circulares and intestinal villi are found in the mucosa.
rugae
The intestinal wall has invaginations (or dips) that have a much larger surface ares compared to a simple tube
Villi Microvilli Plicae Circulares
Plicae and villi
Plicae circularis.
rugae It's not rugae - for stomach. Small intestine wall is plicae circulares.
villi, microvilli, and plicae circulares/circularbfolds
The lining is plicae circulares, and the raised finger-like parts of the lining are called villi. Villi's adsorb carbohydrates through their membranes and capillaries within carry the nutrients off to the rest of your body.
Circular fold (plicae circulares)
The large surface area of the small intestine is achieved by a combination of anatomical features such as the plicae circularis, the vili, and the microvilli.
Plicae circulares and intestinal villi