Objective: To learn about different processes and functions in the human digestive system. Learning outcomes: Students will be able to 1. Discuss the tongue and the taste buds present on it. 2. Explain the functions of the tongue in the digestive system. 3. State the role of the salivary glands in the human body. 4. Describe the functions of the saliva in the human body. 5. Recognise milk teeth and permanent teeth in humans. 6. Identify different types of teeth. 7. Explain the functions of the different types of teeth. 8. State the functions of the soft palate and the epiglottis in the human digestive system. 9. Explain the movement of food in the oesophagus. 10. List the various gastric secretions in the stomach and state their functions. 11. Describe the process of digestion in the stomach.