Question 1

An organ that helps break down food but is not part of the tube through which the foodstuffs pass is referred to as a(n)

Accepted Answer

A)  chemically digesting organ. 
B)  accessory digestive organ. 
C)  alimentary canal organ. 
D)  diffuse ingestive structure. 
E)  organ of mastication. 
A)  chemically digesting organ. 
B)  accessory digestive organ. 
C)  alimentary canal organ. 
D)  diffuse ingestive structure. 
E)  organ of mastication. B

Question 2

An enzyme found within saliva is salivary

Accepted Answer

A)  pancreatase. 
B)  nuclease. 
C)  amylase. 
D)  protease. 
E)  pepsin. 
A)  pancreatase. 
B)  nuclease. 
C)  amylase. 
D)  protease. 
E)  pepsin. C

Question 3

"Segmentation" within the small intestine refers to the

Accepted Answer

A)  propulsion of material between the segments of the GI tract. 
B)  division of function between the different segments of the small intestine. 
C)  back-and-forth motion that mixes chyme with glandular secretions. 
D)  gastroileal reflex that moves materials from the stomach to the large intestine. 
A)  propulsion of material between the segments of the GI tract. 
B)  division of function between the different segments of the small intestine. 
C)  back-and-forth motion that mixes chyme with glandular secretions. 
D)  gastroileal reflex that moves materials from the stomach to the large intestine. C

Question 4

Which of the following statements is true about teeth?

Accepted Answer

A)  The primary component of teeth is dentin. 
B)  The outer surface of enamel forms the crown of a tooth. 
C)  The root is covered by cementum. 
D)  All of the choices are correct. 
A)  The primary component of teeth is dentin. 
B)  The outer surface of enamel forms the crown of a tooth. 
C)  The root is covered by cementum. 
D)  All of the choices are correct.

Question 5

At the pylorus of the stomach, closure of the pyloric sphincter during the multistep process of gastric emptying leads to a reverse current of material; this reverse flow event is known as ________.

Accepted Answer

The answer of At the pylorus of the stomach, closure...

Question 6

Gross & microscopic anatomy of the alimentary canal.  
-This figure shows an intestinal villus. What specific layer does number 4 indicate?

Accepted Answer

A)  Circular layer of muscularis 
B)  Longitudinal layer of muscularis 
C)  Lamina propria 
D)  Basement membrane 
E)  Muscularis mucosae 
A)  Circular layer of muscularis 
B)  Longitudinal layer of muscularis 
C)  Lamina propria 
D)  Basement membrane 
E)  Muscularis mucosae

Question 7

The sinusoids of the liver are lined by phagocytic reticuloendothelial cells, also called ________ cells.

Accepted Answer

The answer of The sinusoids of the liver are lined...

Question 8

Which phase of digestion involves the thought, smell, and sight of food?

Accepted Answer

A)  Gastric phase 
B)  Cephalic phase 
C)  Enteric phase 
D)  Colic phase 
A)  Gastric phase 
B)  Cephalic phase 
C)  Enteric phase 
D)  Colic phase

Question 9

As a protein is broken down into smaller and smaller fragments, each fragment ultimately requires splitting of the last peptide bond within it. The breaking of the bond between those last two amino acids is catalyzed by the enzyme

Accepted Answer

A)  pepsin. 
B)  chymotrypsin. 
C)  dipeptidase. 
D)  trypsin. 
E)  glucoamylase. 
A)  pepsin. 
B)  chymotrypsin. 
C)  dipeptidase. 
D)  trypsin. 
E)  glucoamylase.

Question 10

Within intestinal epithelial cells, lipids are wrapped in a protein coat to form ________, which will be packaged into secretory vesicles at the Golgi apparatus.

Accepted Answer

chylomicro

Question 11

Lactose intolerant individuals cannot digest the ________ lactose because they lack the enzyme ________.

Accepted Answer

A)  polysaccharide; maltase 
B)  disaccharide; lactase 
C)  monosaccharide; dextrolactase 
D)  lipid; pancreatic lipase 
E)  fatty acid; sucrolactase 
A)  polysaccharide; maltase 
B)  disaccharide; lactase 
C)  monosaccharide; dextrolactase 
D)  lipid; pancreatic lipase 
E)  fatty acid; sucrolactase

Question 12

What is the correct order for the list of structures of the large intestine, starting at the cecum and ending at the rectum?
A: Left colic flexure
B: Ascending colon
C: Transverse colon
D: Right colic flexure
E: Sigmoid colon
F: Descending colon

Accepted Answer

A)  f, c, d, e, a, b 
B)  b, d, c, a, f, e 
C)  e, b, a, c, d, f 
D)  b, a, c, d, f, e 
E)  e, b, d, c, a, f 
A)  f, c, d, e, a, b 
B)  b, d, c, a, f, e 
C)  e, b, a, c, d, f 
D)  b, a, c, d, f, e 
E)  e, b, d, c, a, f

Question 13

The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter. Specifically, these events involve release of

Accepted Answer

A)  secretin in the cephalic phase of digestion. 
B)  gastrin in the gastric phase of digestion. 
C)  CCK in the intestinal phase of digestion. 
D)  lipase in the intestinal phase of digestion. 
E)  chyle in the secretory phase of digestion 
A)  secretin in the cephalic phase of digestion. 
B)  gastrin in the gastric phase of digestion. 
C)  CCK in the intestinal phase of digestion. 
D)  lipase in the intestinal phase of digestion. 
E)  chyle in the secretory phase of digestion

Question 14

Lipid molecules that are absorbed from the GI tract enter

Accepted Answer

A)  mesenteric arteries. 
B)  mesenteric veins. 
C)  lymphatic capillaries. 
D)  the liver. 
A)  mesenteric arteries. 
B)  mesenteric veins. 
C)  lymphatic capillaries. 
D)  the liver.

Question 15

Mastication is one component of the mechanical digestion of food.

Accepted Answer

A) True 
 B)False

Question 16

Stenosis (constriction) of the hepatopancreatic ampulla would interfere with

Accepted Answer

A)  the transport of bile and pancreatic juice. 
B)  the secretion of mucus. 
C)  the passage of chyme into the small intestine. 
D)  peristalsis. 
E)  salivary gland secretion. 
A)  the transport of bile and pancreatic juice. 
B)  the secretion of mucus. 
C)  the passage of chyme into the small intestine. 
D)  peristalsis. 
E)  salivary gland secretion.

Question 17

Late one night, while studying for your anatomy class, you open a box of saltine crackers to do a little snacking. After chewing on a starchy morsel for a few minutes, you begin to notice a sweet taste in your mouth. What accounts for this?

Accepted Answer

A)  "Sweet" taste receptors are slower to respond than others 
B)  Activity of bacteria in the mouth lowers the pH 
C)  Esophageal reflux 
D)  Salivary amylase activity 
E)  Phagocytosis by the pharyngeal tonsils produces by-products that taste sweet 
A)  "Sweet" taste receptors are slower to respond than others 
B)  Activity of bacteria in the mouth lowers the pH 
C)  Esophageal reflux 
D)  Salivary amylase activity 
E)  Phagocytosis by the pharyngeal tonsils produces by-products that taste sweet

Question 18

The term "canines" describes the teeth that

Accepted Answer

A)  are most anterior, used for slicing and cutting. 
B)  are lateral to the incisors, used for puncturing and tearing. 
C)  bear dental cusps for cutting and grinding. 
D)  are only found as permanent teeth. 
A)  are most anterior, used for slicing and cutting. 
B)  are lateral to the incisors, used for puncturing and tearing. 
C)  bear dental cusps for cutting and grinding. 
D)  are only found as permanent teeth.

Question 19

The lingual salivary glands are

Accepted Answer

A)  unicellular endocrine glands. 
B)  unicellular exocrine glands. 
C)  multicellular endocrine glands. 
D)  multicellular exocrine glands. 
A)  unicellular endocrine glands. 
B)  unicellular exocrine glands. 
C)  multicellular endocrine glands. 
D)  multicellular exocrine glands.

Question 20

Which is the layer of the serous membrane that directly covers the surface of internal organs?

Accepted Answer

A)  Omental layer 
B)  Visceral peritoneum 
C)  Parietal peritoneum 
D)  Rectal peritoneum 
E)  Muscularis mucosa 
A)  Omental layer 
B)  Visceral peritoneum 
C)  Parietal peritoneum 
D)  Rectal peritoneum 
E)  Muscularis mucosa

Exam 26: Digestive System

An organ that helps break down food but is not part of the tube through which the foodstuffs pass is referred to as a(n)

An enzyme found within saliva is salivary

"Segmentation" within the small intestine refers to the

Which of the following statements is true about teeth?

At the pylorus of the stomach, closure of the pyloric sphincter during the multistep process of gastric emptying leads to a reverse current of material; this reverse flow event is known as ________.

Gross & microscopic anatomy of the alimentary canal. -This figure shows an intestinal villus. What specific layer does number 4 indicate?

The sinusoids of the liver are lined by phagocytic reticuloendothelial cells, also called ________ cells.

Which phase of digestion involves the thought, smell, and sight of food?

As a protein is broken down into smaller and smaller fragments, each fragment ultimately requires splitting of the last peptide bond within it. The breaking of the bond between those last two amino acids is catalyzed by the enzyme

Within intestinal epithelial cells, lipids are wrapped in a protein coat to form ________, which will be packaged into secretory vesicles at the Golgi apparatus.

Lactose intolerant individuals cannot digest the ________ lactose because they lack the enzyme ________.

What is the correct order for the list of structures of the large intestine, starting at the cecum and ending at the rectum? A: Left colic flexure B: Ascending colon C: Transverse colon D: Right colic flexure E: Sigmoid colon F: Descending colon

The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter. Specifically, these events involve release of

Lipid molecules that are absorbed from the GI tract enter

Mastication is one component of the mechanical digestion of food.

Stenosis (constriction) of the hepatopancreatic ampulla would interfere with

Late one night, while studying for your anatomy class, you open a box of saltine crackers to do a little snacking. After chewing on a starchy morsel for a few minutes, you begin to notice a sweet taste in your mouth. What accounts for this?

The term "canines" describes the teeth that

The lingual salivary glands are

Which is the layer of the serous membrane that directly covers the surface of internal organs?

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Lactose intolerant individuals cannot digest the lactose because they lack the enzyme .