They are called "plicae circulares"
permanent folds are called plicae circulares temporary folds are called rugae.
rugae It's not rugae - for stomach. Small intestine wall is plicae circulares.
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.
The minute structures that project from the inner walls of the small intestine are called villi. They help in the digestion process by continuously pushing digested particles in one direction. Their function is to absorb nutrients. These villi effectively increase the surface area of the intestine so more nutrients can be absorbed.
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 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.
The tiny folds inside the small intestine are called villi. They increase the surface area of the intestine, allowing for better absorption of nutrients into the bloodstream. Each villus contains blood vessels and lacteals to facilitate the absorption process.
The structure found in the inner layer of the small intestine is called the villi. Villi are small finger-like projections that increase the surface area of the small intestine, aiding in the absorption of nutrients.
circular folds
projections r called ..VILLI
It's impossible to count. The entire structure of the small intestine is folded and coiled so it's impossible to identify individual folds. Also the small intestine can move around within the abdomen, so changes in shape are normal.