Follow the folded digestive tract in 3D — duodenum, small intestine, and colon labeled with clickable hotspots and absorption notes by Aurelia RMT.
Labeled Hotspots
Duodenum — First segment of the small intestine; C-shaped; receives chyme from the stomach plus bile and pancreatic juices; site of most chemical digestion and initial nutrient absorption
Small Intestine — ~6–7 m long; jejunum and ileum; lined with villi and microvilli (brush border) that absorb carbohydrates, amino acids, fatty acids, and vitamins; ileum absorbs B12 and bile salts
Colon (Large Intestine) — ~1.5 m long; ascending, transverse, descending, and sigmoid colon; absorbs water and electrolytes; houses gut microbiome; forms and stores feces