Laboratory - Gastrointestinal Tract, Pancreas and Liver

Gross Anatomy of the Digestive Tract

Oral cavity

uvula

parotid gland

Pharynx

Esophagus

lower esophageal sphincter (cardiac sphincter)

Stomach

pyloris

rugae

pyloric sphincter

Small intestine

duodenum

jejunum

ileum

Colon

ileocecal valve

cecum

appendix

ascending colon

transverse colon

descending colon

sigmoid colon

Rectum

 

Gross anatomy of the Liver and Gallbladder

gallbladder

hepatic duct

common bile duct

hepatic veins and arteries

hepatic portal vein

Gross anatomy of the Pancreas

pancreatic duct

 

Structure of Duodenum

Mucosa

simple columnar epithelium - Digestive epithelium surrounding the intestinal villi

Lacteals - terminal lymphatics inside of the villi

Duodenal glands extend into the mucosa

Submucosa

Duodenal glands (Brunner's glands)

Lymphatic nodules

Muscularis externa

inner circular layer

outer longitudinal layer

Serosa

 

David G. Ward, Ph.D.  Last modified by wardd 23 May, 2006