Biology 2060 - Anatomy and Physiology II » Summer 2020 » Digestive System Quiz
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Question #1
Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or paracrines that are released directly into the lamina propria. Which of the following cell types synthesize and secrete these products?
A.
parietal cells
B.
zymogenic cells
C.
enteroendocrine cells
D.
mucous neck cells
Question #2
The capillaries that nourish the epithelium and absorb digested nutrients lie in the ________.
A.
muscularis mucosae
B.
adventitia
C.
lamina propria
D.
serosa
Question #3
Choose the incorrect statement regarding bile.
A.
Bile is both an excretory product and a digestive secretion.
B.
Bile functions to emulsify fats.
C.
Bile contains enzymes for digestion.
D.
Bile functions to carry bilirubin formed from breakdown of worn-out RBCs.
Question #4
The layer of the digestive tube that contains blood vessels, lymphatic nodes, and a rich supply of elastic fibers is the ________.
A.
mucosa
B.
submucosa
C.
muscularis externa
D.
serosa
Question #5
Kupffer cells are found in the liver and are responsible for removing bacteria and worn- out cells.
A.
FALSE
B.
TRUE
Question #6
Hepatocytes do not ________.
A.
store fat-soluble vitamins
B.
process nutrients
C.
detoxify
D.
produce digestive enzymes
Question #7
The pancreas has both an endocrine and an exocrine function.
A.
TRUE
B.
FALSE
Question #8
Hydrochloric acid is secreted by which of the secretory cells of the stomach?
A.
mucous neck cells
B.
parietal cells
C.
serous cells
D.
chief cells
Question #9
Most nutrients are absorbed through the mucosa of the intestinal villi by facilitated diffusion/ secondary active transport.
A.
FALSE
B.
TRUE
Question #10
There are three phases of gastric secretion. The cephalic phase occurs ________.
A.
immediately after food enters the stomach, preparing the small intestine for the influx of a variety of nutrients
B.
at the end of a large meal, and the juices secreted are powerful and remain in the GI tract for a long period of time
C.
when the meal is excessively high in acids and neutralization is required
D.
before food enters the stomach and is triggered by aroma, sight, or thought
Question #11
Some of the microbes that often invade other organs of the body are rarely found in the stomach. The reason for this is the presence of HCl.
A.
TRUE
B.
FALSE
Question #12
The terminal portion of the small intestine is known as the ________.
A.
duodenum
B.
jejunum
C.
ileum
D.
pyloric sphincter
Question #13
Pepsinogen is the precursor to the gastric enzyme for protein digestion and is secreted by the chief cells.
A.
FALSE
B.
TRUE
Question #14
The soft palate rises reflexively to open the nasopharynx when we swallow food.
A.
FALSE
B.
TRUE
Question #15
The main chemical activity of the stomach is to begin the digestion of proteins.
A.
FALSE
B.
TRUE
Question #16
As food passes through the digestive tract, it becomes less complex and the nutrients are more readily available to the body.
A.
TRUE
B.
FALSE
Question #17
The digestive function of the gall bladder is to produce bile.
A.
TRUE
B.
FALSE
Question #18
The major stimulus for production of intestinal juice is distention or irritation of the intestinal mucosa by hypertonic or acidic chyme.
A.
TRUE
B.
FALSE
Question #19
Another term for swallowing is deglutition.
A.
FALSE
B.
TRUE
Question #20
From the esophagus to the anal canal, the walls of every organ of the alimentary canal are made up of the same four basic layers. Arrange them in order from the lumen.
A.
muscularis externa, serosa, mucosa, and submucosa
B.
mucosa, submucosa, muscularis externa, and serosa
C.
serosa, mucosa, submucosa, and muscularis externa
D.
submucosa, serosa, muscularis externa, and mucosa
Question #21
Match the following: Wavelike smooth muscle contractions that move foodstuffs through the alimentary tube.
A.
Digestion
B.
Absorption
C.
Hydrolysis
D.
Peristalsis
Question #22
Match the following: Chemical or mechanical process of breaking down foodstuffs to substances that can be absorbed.
A.
Absorption
B.
Peristalsis
C.
Digestion
D.
Hydrolysis
Question #23
Match the following: Enzymatic breakdown of any type of food molecule.
A.
Digestion
B.
Absorption
C.
Hydrolysis
D.
Peristalsis
Question #24
Match the following: Process by which the products of digestion pass through the lumen of the gastrointestinal tract into the blood or lymph.
A.
Peristalsis
B.
Absorption
C.
Hydrolysis
D.
Digestion
Question #25
The sheets of peritoneal membrane that hold the digestive tract in place are called ________.
A.
mucosal lining
B.
lamina propria
C.
serosal lining
D.
mesenteries
Question #26
The dental formula for an adult is 2- 1- 2- 3. What does the 1 stand for?
A.
premolar tooth
B.
incisor tooth
C.
canine tooth
D.
molar tooth
Question #27
The ducts that deliver bile and pancreatic juice from the liver and pancreas, respectively, unite to form the ________.
A.
portal vein
B.
hepatopancreatic ampulla
C.
pancreatic acini
D.
bile canaliculus
Question #28
The function of the hepatic portal circulation is to ________.
A.
carry toxins to the venous system for disposal through the urinary tract
B.
distribute hormones
C.
collect absorbed nutrients for metabolic processing or storage
D.
return glucose to the general circulation when blood sugar is low
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