Name_____________
Digestive System Test
Matching (1 pt)
___1. Inner layer of the alimentary canal.
A. small intestine
___2. Functional unit of the liver.
B. digestion
___3. This structure ends at the cardiac sphincter.
C. amylase
___4. Breakdown of food and absorption of nutrients
D. enamel
___5. Produced by serous cells
E. mucosa
___6. Increases its secretions in response to secretin
F. bacteria
___7. Hardest substance in the body
G. stomach
___8. This organ secretes a watery substance and then
sucks it back up and digests/absorbs the nutrients
in it.
H. hepatic lobule
___9. This organ creates an acidic environment in order to
begin digestion of food.
I. esophagus
___10. Helps breakdown some foods that our digestive
cannot.
J. pancreas
Multiple choice: choose the best answer (1 pt)
___11. Which of the following digestive system organs is an accessory
organ?
A. mouth
B. stomach
C. pancreas
D. small intestine
___12. The layer of the alimentary canal that remains moist and slippery in
order to reduce friction with other organs is the
A. mucosa B. submucosa
C. muscular
D. serosa
___13. Pancreatic enzymes travel along the pancreatic duct and, along with
the bile duct, enter the small intestine through the
A. cardiac sphincter
B. internal anal sphincter
c. hepatopancreatic sphincter
D. pyloric sphincter
___14. The main function of this organ is to absorb water and electrolytes
along with forming feces
A. stomach
B. liver
C. small intestine
d. large intestine
___15. Hepatic cells within a hepatic lobule filter blood
A. as blood moves from the outside of the lobule toward the inside
B. by first absorbing blood, filtering it, then secreting it back out
C. by secreting enzymes into the blood
D. by secreting bile into the blood
___16. Why is the stomach able to mix food and gastric juice very well?
A. rugae increase surface area
B. 3 muscle layers allow the stomach to contract in multiple directions
C. the cardiac sphincter keeps food out of the small intestine
D. the gastric juice moves the food as it is secreted
___17. How does saliva aid digestion?
A. begins breakdown of proteins
B. begins breakdown of carbs
C. begins breakdown of lipids
D. begins breakdown of nucleic acids
___18. What is a common control mechanism of the digestive system?
A. parasympathetic nervous system
B. hormones
C. somatic nervous system
D. both a & b
___19. Villi and microvilli are important because
A. they increase surface area for max absorption
B. they contribute to peristalsis
C. they carry nutrients to the liver
D. they secrete bile
___20. Which of the following is not part of gastric juice?
A. pepsin
B. mucus
C. lipase
D. hydrochloric acid (HCI)
___21. How does bile contribute to digestion?
A. helps move chime
B. digests protein
C. emulsifies fats
D. lubricates the alimentary canal
___22. Which of the following is not a region of the large intestine?
A. sigmoid colon
B. duodenum
C. ascending colon
D. descending colon
___23. Why are there capillaries in the villi of the small intestine?
A. secretion of enzymes
B. immune defense
C. increase surface area
D. transport nutrients
___24. What disorder is caused by a buildup of bile?
A. jaundice
B. cavity
C. ulcer
D. diarrhea
___25. What does mucus do in the digestive system?
A. moisten food B. protect the mucosa layer
C. lubricates
D. all the above
___26. The function of the gallbladder is to
A. store bile
B. secrete bile
C. activate bile
D. lower pH of bile
___27. This region connects the mouth to the esophagus
A. larynx
B. pharynx C. uvula
D. pyloric canal
___28. What does the enzyme pepsin digest?
A. carbs
B. lipids
C. proteins
D. nucleic acids
___29. What structure keeps food from going into the trachea (wind pipe)?
A. epiglottis
B. uvula
C. cecum
D. appendix
___30. Why would the small intestine be the longest organ of the digestive
system?
A. it secretes many enzymes
B. majority of digestion/absorption occurs there
C. it moves chyme using peristalsis
D. it has 3 regions
Match the region with the correct organ (1 pt)
___31. Cardiac
A. salivary gland
___32. Right lobe
B. gallbladder
___33. Cystic duct
C. liver
___34. Submandibular
D. mouth
___35. Hard palate
E. stomach
Match the secretion with the organ (1 pt)
___36. Bile
A. pancreas
___37. Trypsin
B. liver
___38. Watery fluid
C. small intestine
___39. Hydrochloric acid
D. many organs
___40. Mucus
E. stomach
Match the cells with the secretions
___41. Mucous
A. bile
___42. hepatic
B. mucus
___43. Chief
C. HCI
___44. Acinar
D. pepsinogen
___45. Parietal
E. pancreatic juice
Bonus from the video: 1 pt
how did eating tomatoes help people?
Did eating berries improve memory significantly?