It increases the surface area available for absorption of digestion nutrients.
Folds increase the surface area to volume ratio.Imagine a circle with folds all around the edge and another circle the same size with a flat edge. Both circles have the same volume, but the one with the folds has a much larger surface area.
There would be much less surface area for the digestion and absorption, so digestion and absorption would be slowed by a lot.
No, the length increases. When you are alive, the muscles are contracted in folds, and when you die, these folds relax, expanding the small intestine.
permanent folds are called plicae circulares temporary folds are called rugae.
circular folds
the lining of the small intestine has folds, and are covered with finger-like projections called villi, which are covered with thousands of micro-villi
The villi are the tiny finger-like projections that cover the folds of the small intestine. The singular of villi is villus.
Becaus it does HaHAHAHAHA
Inner folds are called villi and they increase the surface area and increase the efficiency of digestion and absorption by increasing the contact of intestinal secretions and food particles and also food particles and the inner surface lining of intestine.
The circular folds or plicae circularis are the permanent folds or ridges of the mucosa.
folds and villi
They are called "plicae circulares"