f. Rectum 8. Where does chemical digestion begin? Where in the digestive tract does most of the chemical digestion take

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F Rectum 8 Where Does Chemical Digestion Begin Where In The Digestive Tract Does Most Of The Chemical Digestion Take 1 (42.31 KiB) Viewed 84 times

f. Rectum 8. Where does chemical digestion begin? Where in the digestive tract does most of the chemical digestion take place? 9. Where does absorption begin? Where in the digestive tract does most of the absorption take place? 10. What is the primary function of the large intestine? Why is this important? 11. Mucus is secreted everywhere along the digestive tract. What purpose does it serve? Why do you think that the number of goblet cells (produce mucus) is so much higher in the large intestine? 12. Which type of epithelium is found in: Oral cavity, Upper Esophagus and Anal Canal Stomach, Small Intestine and Large Intestine 13. While most of the digestive tract has two layers of muscle in the muscularis externa (longitudinal and circular), the stomach has a third oblique layer. Based on what you know about the role of the stomach in both mechanical and chemical digestion, why do you think the stomach has this third layer? 14. Which part of the digestive tract has villi? How are villi different from microvilli? What purpose does each one serve? a. b.