Answer Key
1. C. stomach
2. D. oral cavity
3. salivary amylase
4. Bile, liver/hepatocytes, gallbladder, duodenum, pancreatic lipase
5. C. jejunum
6. longitudinal
7. A. plicae circulares
8. gastrin, chief, parietal
9. chief, pepsinogen
10. pepsinogen, hydrochloric acid, parietal
11. parietal, intrinsic factor
12. B. dense irregular CT
13. A. skeletal muscle
14. pancreatic lipase, pancreatic amylase, trypsinogen
15. E. mesentery proper
16. cholecystokinin (CCK)
17. hepatic portal vein, hepatic artery proper
18. D. ileum