👉 Jejunoduodenal refers to a specific digestive tract structure that is located in the lower part of the small intestine, often referred to as the "jejunum". This area contains three main components: the ileum, which is the large intestine, and the jejunal villi, which are tiny finger-like structures that line the lining of the jejunum. The jejunum is a crucial part of the digestive system, functioning as both a source of nutrients for the body and a