Villi and microvilli are both found in the human body. The fact that the word 'villi' is present in the two words does not mean they are referring to the same thing. In fact, their functions in the body are different. Villi are like small projections from a mucous membrane, particularly those found in the intestines. Villi are very short in length; approximately, each villus is 1mn long. Inside villus, there exists microvillus.
Villi can also be called intestinal villi. The microvilli in them act only on the intestine lining by increasing the surface area so as to aid absorption. Microvilli, on the other hand, are generally found inside the various cells in the body; they are present inside the taste bud, and they are also functioning in the ear. The job of the microvilli is to increase the surface area of the cell, and as a result, they are aiding, absorption, adhesion, secretion, etc.
Although these terms sound like they are far from being the same. These terms are common in biology and they do not mean the same thing. Microvilli are finger-likee structures present on the surfaces of many cells. They consist of proteins such as actin, fimbrin, and villin. Microvilli are microscopic and they function to increase the surface area of cells for diffusion useful in secretion and absorption.
However, villi are only found in the intestine of the digestive system. Villi are much larger than microvilli they function to increase the rate of absorption in the intestine. Villi work by increasing the surface area of the intestine to improve the rate of absorption of digested food. Villi work to transport digested food to a network of capillaries and lymphatic vessels. Hope you find this information helpful.
Alterations of the luminal surface area include valvulae conniventes, villi, and microvilli. Formations like Microvilli may be found in some other areas of the body. Out of these three, villi are the most seen while a microscope may detect microvilli. Finger-like projections located in the inner surface of the small intestine are referred to as villi. These are created by folding the mucosa of the small intestine to boost the surface area of nutritional absorption.
They also aid in the absorption of minerals and electrolytes. Microvilli are tiny projections of cell membranes which increase the surface area of cells. The main tasks of microvilli are absorption, secretion, and cellular adhesion. Microvilli form a structure called a brush border. Villi are larger than microvilli. Villi are found on layers of tissue, while microvilli are found on cells.
Villi and Microvilli can be found in the body and they have their own functions. It does not mean that just because they both end in villi, they are already the same. Microvilli is one of the cell’s parts. This makes it possible to do different functions like secretions, adhesion, and absorption.Villi can be found in the intestinal wall.
The main function of this is to also absorb but the absorption is limited to the intestinal lining. This sets apart the microvilli from the villi because the former can be found in different parts of the body while the latter will only be found in the intestinal walls. They may be very small but they help the body in a lot of ways.