Intestinal villi Intestinal villi (Latin: Vērticillōlum íntestínum) are a type of specialized microvilli that are found in the intestinal mucosa (colon) of some animal species and humans, including humans. Villi are an important structural element of the intestines and play a key role in digestion, absorption of nutrients and removal of waste from the body. In this article we will look at the nature, anatomy, functions and significance of intestinal villi.
Nature of Intestinal Villi The first group of intestinal villi discovered are called M-villi, and they make up about 50% of all villi. They are the most common and are present in most mammals. M-villi are used for signal exchange and nutrient transport between enterocytes, through which all nutrients pass from the lumen to the intestinal mucosa and vice versa. The villi are also important structural elements for processes related to malabsorption and immunity due to their numerous glycoprotein receptors.
Another well-known group of villi is the Ca-villi. These villi are found only in many species of birds and consist of ultra-long