Jejunum and ileum comprises the distal portion of the small intestine after the duodenum.    Though the basic layers (mucosa, submucosa, muscular is propria and adventia/serosa) remain the same and the mucosa also form villi, there are a few structural … Continue reading Jejunum and ileum

Duodenum is the most proximal portion of the small intestine to the stomach.  The mucosa of the duodenum form villi that increases the surface area for absorption.  Most unique to the duodenum are the presence of Brunner’s glands in the submucosa … Continue reading Duodenum