👉 Interestin is a term used in medicine, specifically within the context of the gastrointestinal system. It refers to the process by which certain substances are absorbed into the bloodstream and transported throughout the body for absorption purposes. This can involve a variety of processes such as diffusion, peristalsis, and other mechanisms. In the case of intersternal, this term generally refers to the process where food or nutrients enter the digestive tract and then pass through the walls of the small intestine into the bloodstream.