Digestive System Model

Life-size Five-part Digestive System replicates the entire alimentary tract from mouth to anus, including:

1. Detachable lower jaw half, complete with teeth, muscles of mastication and salivary glands
2. Dissected pancreas exposing the pancreatic and common bile ducts
3. Duodenum sectioned open to reveal the hepato-pancreatic ampulla and the entrance of the accessory pancreatic duct
4. Dissection of the terminal portion of the ileum and cecum showing the ileo-cecal valve and the orifice of the vermiform appendix
5. Section through the rectum, anal canal and anus to reveal the anal columns and anal sphincter

The liver and 2-part stomach also detach to ease in observation. Features are number coded for identification in the accompanying key, and the model is mounted on a hardwood base.

Key numbers

The Lower Half of the Jaw

1. Mandible
2. Incisor
3. Canine
4. Premolar
5. Molar
6. Parotid gland
7. Parotid duct
8. Submandibular gland
9. Masseter muscle
10. Tongue
11. Genioglossus muscle
12. Geniohyoid muscle
13. Mylohyoid muscle
14. Digastric muscle
15. Hyoid bone

The Head

1. Concha(turbinates)
2. Olfactory nerves
3. Maxilla
4. Hard palate
5. Soft palate
6. Pharynx
7. Larynx
8. Trachea
9. Esophagus
10. Epiglottis
11. Thyroid cartilage
12. Cricoid cartilage
13. Vocal fold

Lower Digestive System

1. Small intestine, duodenum
2. Pancreas
3. Pancreatic duct
4. Accessory pancreatic duct
5. Major duodenal papilla
6. Spleen
7. Splenic vein
8. Splenic artery
9. Superior mesenteric vein
10. Superior mesenteric artery
11. Small intestine, jejunum and ileum
12. Ileocecal valve
13. Cecum
14. Appendix
15. Large intestine, ascending colon
16. Large intestine, transverse colon
17. Large intestine, descending colon
18. Large intestine, sigmoid colon
19. Rectum
20. External anal sphincter muscle
21. Internal anal sphincter muscle

Overall dimensions: 36x11x6 inches (91x28x15 cm).