Questions
Question 1
Secretion of cholecystokinin from the intestinal wall is stimulated by
- fat in the stomach.
- protein and fat in the small intestine.
- protein in the stomach.
- protein in the small intestine.
Question 2
Which constituent of bile has a digestive function?
- Bile pigments
- Bile salts
- Electrolytes
- Cholesterol
Question 3
Gallstones are usually composed of
- bile pigments.
- calcium salts.
- cholesterol.
- uric acid.
Question 4
Feces are about ____ percent water.
- 75
- 33
- 25
- 50
Question 5
The pyloric sphincter serves as a valve that controls the movement of food between the esophagus and stomach.
- True
- False
Question 6
The cecum is located at the inferior end of the descending colon.
- True
- False
Question 7
The _______ is the part of the digestive tract that has the most lymph nodules and bacteria.
- ileum
- jejunum
- duodenum
- colon
Question 8
The common hepatic duct and the cystic duct unite to form the
- hepatic duct.
- common bile duct.
- hepatopancreatic duct.
- pancreatic duct.
Question 9
The process by which bile breaks down fat globules into smaller droplets is ______.
Question 10
Activities of the digestive system generally increase when it is stimulated by
- sympathetic impulses.
- somatic impulses.
- sensory impulses.
- parasympathetic impulses.
Questions 11
The epithelial cells that form the inner lining of the small intestine
- remain where they are first formed.
- are not able to reproduce.
- are replaced every few days.
- are cube-shaped.
Question 12
An X-rays series of the bile ducts is called a
- cholangiogram.
- cholelithiasis.
- cholecystectomy.
- cholecystogram.
Question 13
The esophagus passes through an opening in the diaphragm called the esophageal ______.
Question 14
Bile is composed of HCl, pepsin, mucus, and intrinsic factor.
- True
- False
Question 15
Tanisha has abdominal pains. Medical tests reveal that she can digest nutrients, but the nutrients are not taken in by the intestinal blood supply. She likely has
- malnutrition.
- food allergy.
- malabsorption.
- constipation.
Question 16
Feces contain
- undigested food.
- all of the above.
- bacteria.
- electrolytes.
Question 17
The main part of the stomach is called the
- cardia.
- fundus.
- body.
- pylorus.
Question 18
The hepatic duct connects the gallbladder to the bile duct.
- True
- False
Question 19
The esophagus provides a passageway for substances from the larynx to the bronchi.
- True
- False
Question 20
VLDL molecules are produced in which organ?
- Pancreas
- Liver
- Kidneys
- Stomach
Question 21
The movement of chyme through the small intestine is increased by parasympathetic impulses and is inhibited by sympathetic impulses.
- True
- False
Question 22
The tissues turning yellow (jaundice) is due to the accumulation of
- carotene.
- hemoglobin A.
- bile pigments.
- cholesterol.
Question 23
It is good that Emily does not remember being a newborn, because she was miserable, vomiting frequently. An X-ray revealed hypertrophic pyloric stenosis. The problem in Emily’s digestive system, before surgery helped her, was
- an extra stomach.
- overgrowth of muscle that blocked the passageway from the stomach to the small intestine.
- absence of the pyloris.
- a peptic ulcer.
Question 24
The major mixing movement in the small intestine is accomplished by
- peristalsis.
- ring contractions.
- churning.
- segmentation.
Question 25
The hormone secretin
- activates chymotrypsin.
- stimulates release of pancreatic juice.
- inhibits the action of pancreatic lipase.
- converts trypsinogen to trypsin.
ANSWERS
Question 1
Secretion of cholecystokinin from the intestinal wall is stimulated by
- fat in the stomach.
- protein and fat in the small intestine.
- protein in the stomach.
- protein in the small intestine.
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