Download Worksheet 3: GI

Worksheet 3: Gastrointestinal Anatomy & Physiology
Supplies: Large model of entire GI tract; model of stomach and pancreas; A Brief Atlas of the Human Body, 2nd
ed.
Instructions: Identify the following structures on the models and in Figures 64-69 of A Brief Atlas. Some
structures will be found on both models and in the Atlas; some will be only found in one place only. Some
items are listed more than once, since they can be thought of as parts of more than one larger organ or system.
Oral Cavity
 Tooth
 Soft palate
 Hard palate
 Oral cavity
 Epiglottis
 Glottis
 Tongue
 Pharynx
 Nasopharynx
 Oropharynx
 Laryngopharynx
 Hyoid bone
 Uvula
Esophagus
 Gastroesophageal junction (functional
sphincter)
Stomach
 Cardia
 Fundus
 Body
 Pylorus
 Lesser curvature
 Greater curvature
 Pyloric sphincter
 Rugae
 Mucosal layer
 Muscular layer(s)
Small Intestine
 Duodenum
 Major duodenal papilla
 Jejunum
 Ileum
 Circular folds (plica circulares)
Large Intestine
 Ileocecal valve
 Cecum
 Appendix
 Ascending colon
 Transverse colon
 Descending colon
 Sigmoid colon
Rectum
Anus
Accessory Organs
 Pancreas
 Pancreatic duct
 Gallbladder
 Cystic duct
 Biliary tree
 Major duodenal papilla
 Hepatopancreatic ampulla (ampulla of
Vater)
 Common bile duct
 Pancreatic duct
 Cystic duct
 Common hepatic duct
 Liver
 Left, right lobes
 Falciform ligament
Spleen (not a digestive organ)
Blood vessels (not on the models)
 Abdominal aorta
 Celiac artery
 Superior & inferior mesenteric arteries
 Hepatic artery
 Hepatic portal vein
 Hepatic vein
 Inferior vena cava
Worksheet 3: Gastrointestinal Anatomy & Physiology
Describe the following digestive processes and identify the organs that participate in each process:
1. Ingestion
2. Propulsion
3. Mechanical breakdown
4. Digestion
5. Absorption
6. Defecation