Digestive System Practice Quiz
Circle the correct answer choice or fill in the blank.
1. Which of the following organs has 3 layers of smooth muscle in its muscularis externa?
A. small intestine B. esophagus C. stomach D. large intestine E. rectum
2. Chemical digestion of carbohydrates begins in the
A. esophagus B. stomach C. duodenum D. oral cavity E. jejunum
3. The enzyme which begins carbohydrate digestion is named ___________ ___________.
4. ________ is produced by the _________ and released from the __________ into the
___________ , aiding the digestion of fats through emulsification, which increases the surface
area for the enzyme __________ ___________ to attack the triglyceride molecules.
5. Most of the nutrient absorption along the alimentary canal occurs in the
A. ascending colon B. stomach C. jejunum D. ileum E. cecum
6. The taeniae coli of the large intestine is formed by the ______________ layer of the
muscularis externa.
7. The small intestine possesses permanent folds along its length known as
A. plicae circulares B. haustra C. rugae D. villi E. intestinal crypts
8. The G cells of the stomach secrete the hormone __________, which stimulates the
__________ and ___________ cells.
Practice Quiz by
Andrey Michel
