What is small intestine appearance?

The small intestine has a distinctive appearance characterized by its long, coiled structure and highly folded inner lining, which includes numerous villi and microvilli that increase surface area for nutrient absorption. Its walls are typically smooth and contain a network of blood vessels and lymphatics beneath the mucosa. The small intestine is divided into three parts: the duodenum, jejunum, and ileum, each with slightly varying textures and colors, often described as a pinkish hue. Overall, its intricate architecture plays a crucial role in digestion and nutrient absorption.