Question 1

When intestinal chyme is highly concentrated,

Accepted Answer

A)  water moves by osmosis into the lumen of the small intestine. 
B)  water moves by osmosis from the intestinal lumen into the blood. 
C)  water moves by endocytosis from intestinal lumen into interstitial spaces. 
D)  water moves by exocytosis from interstitial spaces into the stomach. 
E)  water does not move. 
A)  water moves by osmosis into the lumen of the small intestine. 
B)  water moves by osmosis from the intestinal lumen into the blood. 
C)  water moves by endocytosis from intestinal lumen into interstitial spaces. 
D)  water moves by exocytosis from interstitial spaces into the stomach. 
E)  water does not move. A

Question 2

The movement of food through the digestive tract is

Accepted Answer

A)  segmentation. 
B)  propulsion. 
C)  mixing. 
D)  mastication. 
A)  segmentation. 
B)  propulsion. 
C)  mixing. 
D)  mastication. B

Question 3

In order to remove a tumor in the muscular tunic of the stomach, a surgeon must cut through the

Accepted Answer

A)  lamina propria. 
B)  submucosa. 
C)  serosa. 
D)  mucosa. 
E)  lamina propria 
A)  lamina propria. 
B)  submucosa. 
C)  serosa. 
D)  mucosa. 
E)  lamina propria C

Question 4

The portion of the digestive tract that receives food directly from the oral cavity is the

Accepted Answer

A)  nasopharynx. 
B)  oropharynx. 
C)  laryngopharynx. 
D)  esophagus. 
E)  larynx. 
A)  nasopharynx. 
B)  oropharynx. 
C)  laryngopharynx. 
D)  esophagus. 
E)  larynx.

Question 5

The hepatic lobule is a _____ -sided structure with a(n) _____ triad at each corner and a central vein located in the center of each lobule.

Accepted Answer

A)  6; portal 
B)  5; portal 
C)  6; venous 
D)  5; arterial 
E)  6; arterial 
A)  6; portal 
B)  5; portal 
C)  6; venous 
D)  5; arterial 
E)  6; arterial

Question 6

Which of the following does NOT illustrate digestion?

Accepted Answer

A)  polysaccharides $\rightarrow$ disaccharides 
B)  fat $\rightarrow$ fatty acids and glycerol 
C)  CO2 and H2O$\rightarrow$carbohydrates 
D)  protein $\rightarrow$ amino acids 
E)  disaccharides $\rightarrow$ monosaccharides 
A)  polysaccharides $\rightarrow$ disaccharides 
B)  fat $\rightarrow$ fatty acids and glycerol 
C)  CO2 and H2O$\rightarrow$carbohydrates 
D)  protein $\rightarrow$ amino acids 
E)  disaccharides $\rightarrow$ monosaccharides

Question 7

Which of the following is correctly matched?

Accepted Answer

A)  mucosa - controls peristalsis 
B)  serosa - contains an extensive supply of nerves and blood vessels 
C)  submucosa - lamina propria 
D)  serosa - increased surface area 
E)  muscularis - responsible for peristalsis 
A)  mucosa - controls peristalsis 
B)  serosa - contains an extensive supply of nerves and blood vessels 
C)  submucosa - lamina propria 
D)  serosa - increased surface area 
E)  muscularis - responsible for peristalsis

Question 8

What structure moves food from the pharynx to the stomach?

Accepted Answer

A)  larynx 
B)  laryngopharynx 
C)  esophagus 
D)  epiglottis 
A)  larynx 
B)  laryngopharynx 
C)  esophagus 
D)  epiglottis

Question 9

Which of the following is NOT a muscle of mastication?

Accepted Answer

A)  temporalis 
B)  masseter 
C)  medial and lateral pterygoids 
D)  buccinator 
A)  temporalis 
B)  masseter 
C)  medial and lateral pterygoids 
D)  buccinator

Question 10

Arrange the following structures in order from the small intestine to the rectum. (1) ascending colon
(2) descending colon
(3) sigmoid colon
(4) transverse colon

Accepted Answer

A)  1, 2, 3, 4 
B)  1, 4, 2, 3 
C)  2, 3, 1, 4 
D)  2, 4, 1, 3 
E)  1, 4, 3, 2 
A)  1, 2, 3, 4 
B)  1, 4, 2, 3 
C)  2, 3, 1, 4 
D)  2, 4, 1, 3 
E)  1, 4, 3, 2

Question 11

Which of the following is a function performed by the digestive system?

Accepted Answer

A)  cellular respiration 
B)  food selection 
C)  elimination of undigested food 
D)  regulation of blood pH 
E)  integration and coordination of other systems 
A)  cellular respiration 
B)  food selection 
C)  elimination of undigested food 
D)  regulation of blood pH 
E)  integration and coordination of other systems

Question 12

Bile

Accepted Answer

A)  digests proteins in the small intestine. 
B)  emulsifies fats in the small intestine. 
C)  is made by the gallbladder and stored by the liver. 
D)  activates trypsin in the small intestine. 
E)  activates the pancreas. 
A)  digests proteins in the small intestine. 
B)  emulsifies fats in the small intestine. 
C)  is made by the gallbladder and stored by the liver. 
D)  activates trypsin in the small intestine. 
E)  activates the pancreas.

Question 13

The gastric phase of gastric secretion

Accepted Answer

A)  decreases the release of gastrin in the stomach. 
B)  is triggered by taste, sight, thought, or smell of food. 
C)  is mediated by impulses on sympathetic nerves. 
D)  leads to the greatest volume of gastric secretion. 
E)  leads to the least volume of gastric secretion. 
A)  decreases the release of gastrin in the stomach. 
B)  is triggered by taste, sight, thought, or smell of food. 
C)  is mediated by impulses on sympathetic nerves. 
D)  leads to the greatest volume of gastric secretion. 
E)  leads to the least volume of gastric secretion.

Question 14

Which of the following pairs is mismatched?

Accepted Answer

A)  crown - enamel 
B)  root - root canal 
C)  alveoli - periodontal ligament 
D)  pulp cavity - cementum 
E)  apical foramen - blood supply 
A)  crown - enamel 
B)  root - root canal 
C)  alveoli - periodontal ligament 
D)  pulp cavity - cementum 
E)  apical foramen - blood supply

Question 15

The enterogastric reflex can be triggered by

Accepted Answer

A)  distention of the duodenal wall. 
B)  the presence of food in the stomach. 
C)  increased pH in the duodenum. 
D)  the cerebral cortex. 
E)  the hormone secretin. 
A)  distention of the duodenal wall. 
B)  the presence of food in the stomach. 
C)  increased pH in the duodenum. 
D)  the cerebral cortex. 
E)  the hormone secretin.

Question 16

Match the organ with the appropriate function.
-lips and cheeks

Accepted Answer

A) secretion of saliva 
B) manipulation of food 
C) swallowing 
D) storage of bile 
E) protection of small intestinal wall 
A) secretion of saliva 
B) manipulation of food 
C) swallowing 
D) storage of bile 
E) protection of small intestinal wall

Question 17

Match the function with its appropriate description.
-chemical digestion

Accepted Answer

A) movement of molecules from digestive tract into blood 
B) chewing of food 
C) muscular contractions that propel food 
D) removal of undigested wastes from body 
E) breakdown of organic molecules with digestive enzymes 
A) movement of molecules from digestive tract into blood 
B) chewing of food 
C) muscular contractions that propel food 
D) removal of undigested wastes from body 
E) breakdown of organic molecules with digestive enzymes

Question 18

Where does bile enter the duodenum?

Accepted Answer

A)  cystic duct 
B)  hepatopancreatic ampulla 
C)  hepatic duct 
D)  duodenal ampulla 
A)  cystic duct 
B)  hepatopancreatic ampulla 
C)  hepatic duct 
D)  duodenal ampulla

Question 19

The hepatopancreatic ampulla is formed by the union of the

Accepted Answer

A)  pancreatic duct with the lacteals. 
B)  greater duodenal papilla with the lesser duodenal papilla. 
C)  common bile duct and pancreatic duct. 
D)  cystic duct and interlobular duct. 
E)  hepatic ducts and cystic ducts. 
A)  pancreatic duct with the lacteals. 
B)  greater duodenal papilla with the lesser duodenal papilla. 
C)  common bile duct and pancreatic duct. 
D)  cystic duct and interlobular duct. 
E)  hepatic ducts and cystic ducts.

Question 20

The salivary glands that open into the oral cavity beside the frenulum of the tongue are the

Accepted Answer

A)  parotid glands. 
B)  sublingual glands. 
C)  submandibular glands. 
D)  labial glands. 
E)  lacrimal glands. 
A)  parotid glands. 
B)  sublingual glands. 
C)  submandibular glands. 
D)  labial glands. 
E)  lacrimal glands.

Exam 24: Digestive System

When intestinal chyme is highly concentrated,

The movement of food through the digestive tract is

In order to remove a tumor in the muscular tunic of the stomach, a surgeon must cut through the

The portion of the digestive tract that receives food directly from the oral cavity is the

The hepatic lobule is a _____ -sided structure with a(n) _____ triad at each corner and a central vein located in the center of each lobule.

Which of the following does NOT illustrate digestion?

Which of the following is correctly matched?

What structure moves food from the pharynx to the stomach?

Which of the following is NOT a muscle of mastication?

Arrange the following structures in order from the small intestine to the rectum. (1) ascending colon (2) descending colon (3) sigmoid colon (4) transverse colon

Which of the following is a function performed by the digestive system?

Bile

The gastric phase of gastric secretion

Which of the following pairs is mismatched?

The enterogastric reflex can be triggered by

Match the organ with the appropriate function. -lips and cheeks

Match the function with its appropriate description. -chemical digestion

Where does bile enter the duodenum?

The hepatopancreatic ampulla is formed by the union of the

The salivary glands that open into the oral cavity beside the frenulum of the tongue are the

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The hepatic lobule is a _ -sided structure with a(n) _ triad at each corner and a central vein located in the center of each lobule.