What is Jejunum?
- The jejunum is the second part of the small
- Very little digestion takes place in this
- It is mainly responsible for the absorption of nutrients with the aid of Villi.
What is Ileum?
- The ileum is the third and the longest part of the small
- The main function of this part is to absorb the necessary nutrients from the digested food with the help of Villi.
What are Villi?
- Villi are the finger-like projections present inside the surface of the small intestine to increase the surface
What is the function of villi?
- Villi increase the surface area of the small intestine significantly which aids in the maximum
Absorption of the nutrients.
What is the structure of villi?
- Villi have Microvilli that further increase the surface
- Each Villus has a Central Lacteal. A central lacteal is a projection of the lymphatic system.
- The broken-down fat particles are absorbed through the central lacteal and then passed into the Lymphatic System.
- Central lacteal is surrounded by a network of Capillaries.
- The broken-down proteins and carbohydrates are absorbed directly in these capillaries
Structure of a villus