FMA71481 3D mesh
Stomach
A muscular chamber between the esophagus and small intestine. It stores and mixes food with acid and enzymes before releasing it into the duodenum.
The digestive tract breaks down food, absorbs nutrients and water, and moves waste onward. Accessory organs contribute bile and digestive enzymes.
The BodyParts3D reference dataset includes 97 pieces in the digestive layer across 46 FMA concepts, plus composite organ mappings such as the liver (FMA7197, 60 pieces) and alimentary system.
Ingests and mechanically/chemically breaks down food along the gastrointestinal tract.
Absorbs nutrients, water, and electrolytes into the bloodstream and lymphatic lacteals.
Supplies bile and digestive enzymes from accessory organs (liver, gallbladder, and pancreas) into the small intestine.
Propels unabsorbed residue onward through the large intestine and rectum for elimination.
Review the primary anatomical landmarks below. Click Learn more to open the dedicated page for each structure, or click Select in 3D to inspect it on the interactive 3D model.
A muscular chamber between the esophagus and small intestine. It stores and mixes food with acid and enzymes before releasing it into the duodenum.
A large organ beneath the right side of the diaphragm. It processes absorbed nutrients, produces bile, and synthesizes many proteins carried in the blood.
An abdominal organ with digestive and endocrine roles. It supplies enzymes to the small intestine and releases hormones including insulin and glucagon.
A muscular tube that transports swallowed food and liquid from the pharynx through the thorax and diaphragm into the stomach.
A pear-shaped sac on the visceral surface of the liver that stores and concentrates bile before releasing it via the cystic and bile ducts into the duodenum.
The first segment of the small intestine receiving chyme from the stomach along with digestive enzymes from the pancreas and bile from the liver and gallbladder.
The distal chamber of the large intestine in the pelvis that stores formed feces prior to defecation.
Every anatomical structure assigned to the Digestive layer in atlas.json. Curated landmarks include a Learn more guide, and all 46 structures can be selected directly in the 3D viewer.
Launch the 3D viewer with the Digestive activated. Orbit the camera, use the Exploded View slider to separate overlapping pieces, and click individual structures to inspect their FMA reference ID and anatomical metadata.
You have not selected any structures in the Digestive inside the 3D viewer yet during this session. Click Explore in 3D or any structure card above to inspect a structure on the 3D model.
The stomach (FMA7148) is a muscular chamber between the esophagus and small intestine that stores and mixes food with acid and enzymes.
The liver (FMA7197) lies beneath the right side of the diaphragm; it processes absorbed nutrients, produces bile, and synthesizes blood proteins.
The pancreas (FMA7198) has dual digestive and endocrine roles, supplying enzymes to the small intestine and releasing insulin and glucagon.
The hepatic portal vein collects nutrient-rich blood from the digestive tract and delivers it directly to the liver for processing.
The pancreas serves both digestive and endocrine roles, supplying enzymes to the small intestine while releasing insulin and glucagon into the blood.
The esophagus passes through the muscular diaphragm, and abdominal wall muscles support the abdominal viscera.
Select an answer for each question below to verify your understanding of the digestive.