Jan 24, 2025 · Lined with simple columnar epithelium containing goblet cells that secrete mucus. Villi: Finger -like projections that increase surface area for nutrient absorption. Crypts of Lieberkühn: Glands located at the base of the villi that secrete digestive enzymes and …

Intestinal villi (sg.: villus) are small, finger-like projections that extend into the lumen of the small intestine. Each villus is approximately 0.5–1.6 mm in length (in humans), and has many microvilli projecting from the enterocytes of its epithelium which …

Oct 3, 2024 · The ileum is adapted for absorption as it is very long and has a highly folded surface with millions of villi (tiny, finger like projections) These adaptations massively increase the surface area of the ileum, allowing absorption to take place faster and more efficiently

Nov 3, 2023 · Intestinal villi are fingerlike extensions of intestinal mucosa which project into the lumen of the small intestine. Between the villi are intestinal glands (crypts of Lieberkuhn) which secrete intestinal juice rich in digestive enzymes.

Jan 24, 2025 · The small intestine is divided into three segments: the duodenum, jejunum, and ileum, each specialized for different aspects of digestion and nutrient uptake. The small intestine is a long, coiled tubular organ in the digestive system that connects the …

Villus, in anatomy any of the small, slender, vascular projections that increase the surface area of a membrane. Important villous membranes include the placenta and the mucous-membrane coating of the small intestine.

Mar 28, 2025 · Intestinal villi are tiny, finger-like projections lining the small intestine that absorb nutrients from the foods you eat. Certain diseases can cause damage to villi, leading to villous atrophy. Among the culprits include celiac disease, Crohn's disease, SIBO, giardia, H. pylori, and enteropathy-associated T-cell lymphoma. Certain medications ...

The small intestine is divided into the duodenum, jejunum, and ileum. Much of the small intestine is covered in projections called villi that increase the surface area of the tissue available to absorb nutrients from the gut contents.

Nov 5, 2024 · Discover the structure & adaptations of the small intestine for IGCSE Biology. This revision note explains how villi structure maximises nutrient absorption.

Within the circular folds are small (0.5–1 mm long) hairlike vascularized projections called villi (singular = villus) that give the mucosa a furry texture. There are about 20 to 40 villi per square millimeter, increasing the surface area of the epithelium tremendously.