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Across 1. Name the first layer of the alimentary canal. 8. Name an accessory organ of the digestive system. 10. Where are most of the digestive organs located? 12. What is the abdominal cavity lined with. 14. List a function of the digestive system. 15. Name an organ that lie retroperitoneal in the abdominal cavity. 16. What is found between the two muscle layers of the alimentary canal? 17. What propels food to the stomach? 18. Is peristalsis voluntary or involuntary? 19. Is degluatition voluntary or involuntary? 20. What is the double layer of serous membrane called? 21. Which layer of the alimentary canal contains blood, lymph vessels called?

Down 2. Name the second layer of alimentary canal. 3. Name one essential activity of digestion. 4. What is the GI tract? 5. What is the mesentery of the digestive system? 6. What lines the walls of the abdominopelvic cavity? 7. What primarily absorbs nutrients? 9. What covers the external surfaces of the organs housed in the abdominopelvic cavity? 11. What are the exteriors of digestive organs covered with? 13. What do the mesenteries do?