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Across 1. The smallest of the major salivary glands and are found inferior to the tongue. (2 Words) 5. The ______ consists of the alimentary canal and several accessory organs. (2 Words) 9. In some regions, the mucosa is folded, with tiny projections that extend into the passageway, or _____, of the digestive tube. 10. Connects the midline of the tongue to the floor of the mouth. 11. Propelling movements include a wavelike motion called ______. 12. Receives food and begins digestion by mechanically reducing the size of solid particles and mixing them with saliva. 14. The root of the tongue is covered with rounded masses of lymphatic tissues called ______. (2 Words) 16. The soft palate forms a muscular arch, which extends posteriorly and downward as a cone-shaped projection called the _____. 19. Mucous cells secrete a thick liquid called ______. 20. Nearly fills the oral cavity when the mouth is closed. 22. Forms the roof of the oral cavity. 23. Are on the posterior wall of the pharynx, above the borer of the soft palate. (2 Words) 25. Secrete saliva. (2 Words) 26. The largest of the major salivary glands. (2 Words) 27. Consist of outer layer of skin and pads of subcutaneous fat.

Down 2. Highly mobile structures that surround the mouth opening. 3. The ______ includes the mouth, pharynx, esophogus, stomach, intestines, rectum, and anus. (2 Words) 4. Located in the floor of the mouth on the inside surface of the lower jaw. (2 Words) 6. Consists of considerable loose connective tissue as well as glands and blood vessels. 7. ______ is the mechanical and chemical breakdown of foods. 8. Outer covering of the alimentary canal. 13. On either side of the tongue there are masses of lymphatic tissue called ______. (2 Words) 15. Produces smooth movements of the tube and consists of two coats of smooth muscle tissue. (2 Words) 17. Serous cells produce a watery fluid that contains the digestive enzyme _______. 18. Innermost layer of the alimentary canal. 21. Rough projections called ______ on the tongue surface provide friction, which helps handle food. 24. Two different sets of ______ are formed in the mouth during child development.