diegestive anatomy

Mesentery

Membrane that anchors the small intestine to the posterior abdominal wall

Villi

Tiny

Peyer's patches

Aggregated lymphoid nodules in the submucosa of the small intestine

Circular folds

Deep ridges in the mucosa and submucosa that spiral around the small intestine

Tongue

Flexible muscular organ that moves food and initiates swallowing

Pharynx

Passageway shared by both the respiratory and digestive systems

Esophagus

Muscular tube connecting the pharynx to the stomach; no absorption occurs here

Rugae

Folds in the stomach lining that allow expansion

Haustra

Bulging pouches along the colon wall

Microvilli

Microscopic projections on the epithelial cells of the mucosa

Ileocecal valve

Sphincter located at the junction of small and large intestines

Small intestine

Main site for digestion and absorption of nutrients and water

Lingual frenulum

Tissue fold anchoring the tongue to the mouth floor

Large intestine

Organ where water is reabsorbed and feces is formed

Oral vestibule

Area between lips/cheeks and teeth

Appendix

Small wormlike extension branching from the cecum

Stomach, Organ where protein digestion begins,

Organ where protein digestion begins,

Lesser omentum

Membranous attachment along the lesser curvature of the stomach,

Greater omentum

, Fatty peritoneal fold that drapes over abdominal organs,

Pyloric sphincter,

Muscular sphincter between the stomach and duodenum,

Soft palate

Soft tissue that forms the posterior roof of the mouth,

Anus,

Terminal region of the digestive tract with two sphincters,

Hard palate

Bony structure forming the front roof of the mouth