Question 1

The volume of succus entericus per day is about:

Accepted Answer

A) 0.6L. 
B) 2L. 
C) 3L. 
D) none 
A) 0.6L. 
B) 2L. 
C) 3L. 
D) none B

Question 2

The intestinal brush border help digestion by the followings except:

Accepted Answer

A) Facilitating movements of intestinal content. 
B) Supplying digestive enzymes and special transport system. 
C) Increasing surface area of intestinal mucosa 
D) none 
A) Facilitating movements of intestinal content. 
B) Supplying digestive enzymes and special transport system. 
C) Increasing surface area of intestinal mucosa 
D) none A

Question 3

The main mechamism of succus entericus secretion is:

Accepted Answer

A) Vagal stimulation. 
B) CCK. 
C) Secretin 
D) Local axon reflex 
A) Vagal stimulation. 
B) CCK. 
C) Secretin 
D) Local axon reflex D

Question 4

Contraction of gallbladder is described by the following statement except:

Accepted Answer

A) Occur in response to CCK. 
B) It is stimulated mainly by acid chyme in duodenum. 
C) It is inhibited by atropine. 
D) none 
A) Occur in response to CCK. 
B) It is stimulated mainly by acid chyme in duodenum. 
C) It is inhibited by atropine. 
D) none

Question 5

Bile salts promotes lipid absorption as a result of all the followings except:

Accepted Answer

A) Emulsifying fat. 
B) Formation of micelles. 
C) Activation of pancreatic lipase. 
D) Non of the above. 
A) Emulsifying fat. 
B) Formation of micelles. 
C) Activation of pancreatic lipase. 
D) Non of the above.

Question 6

Enteric lipase splits neutral fat into:

Accepted Answer

A) Fatty acid and glycerol. 
B) Fatty acid glycerol and monoglycerides. 
C) Monoglycerides. 
D) none 
A) Fatty acid and glycerol. 
B) Fatty acid glycerol and monoglycerides. 
C) Monoglycerides. 
D) none

Question 7

The following statements about bile salts are true except:

Accepted Answer

A) They help digestion and absorption of fat. 
B) They have choleretic action. 
C) They are actively absorbed from duodenum. 
D) none 
A) They help digestion and absorption of fat. 
B) They have choleretic action. 
C) They are actively absorbed from duodenum. 
D) none

Question 8

Emptying of gall bladder is stimulated by the followings except:

Accepted Answer

A) Vagal stimulation. 
B) Sympathetic stimulation. 
C) CCK 
D) none 
A) Vagal stimulation. 
B) Sympathetic stimulation. 
C) CCK 
D) none

Question 9

The following statements about succus entericus are true except:

Accepted Answer

A) It contains digestive enzymes. 
B) Its secretion depends on the amount of chime in small hntestine. 
C) It is secreted by intestinal glands. 
D) It is released mainly by vagal stimulation. 
A) It contains digestive enzymes. 
B) Its secretion depends on the amount of chime in small hntestine. 
C) It is secreted by intestinal glands. 
D) It is released mainly by vagal stimulation.

Question 10

The following statements are correct about functions of gall bladder except:

Accepted Answer

A) The capacity of gall bladder is 20-60 ml. 
B) Bile can be concentrated in gall bladder upto 12-20 folds. 
C) Secretion of NaHCO3 by gall bladder prevents precipitation of calcium. 
D) none 
A) The capacity of gall bladder is 20-60 ml. 
B) Bile can be concentrated in gall bladder upto 12-20 folds. 
C) Secretion of NaHCO3 by gall bladder prevents precipitation of calcium. 
D) none

Question 11

Cholera toxins cause diarrhea by:

Accepted Answer

A) Activation of calcium activated C1 - channels in the cells of intestinal crypts. 
B) Activation of cAMP-activated C1- channels. 
C) Activation of both Ca++ activated and cAMP- activated C1- channels. 
D) none 
A) Activation of calcium activated C1 - channels in the cells of intestinal crypts. 
B) Activation of cAMP-activated C1- channels. 
C) Activation of both Ca++ activated and cAMP- activated C1- channels. 
D) none

Question 12

Emptying of GB is inhibited by the followings except:

Accepted Answer

A) Somatostatin. 
B) Sympathetic stimulation. 
C) Estrogen. 
D) Progesterone. 
A) Somatostatin. 
B) Sympathetic stimulation. 
C) Estrogen. 
D) Progesterone.

Question 13

All the following are correct statements about liver cells except:

Accepted Answer

A) They convert amino acids into glucose. 
B) They form cholesterol. 
C) They release glucose when blood glucose tend to decrease. 
D) They are the only site of synthesis of plasma globulins. 
A) They convert amino acids into glucose. 
B) They form cholesterol. 
C) They release glucose when blood glucose tend to decrease. 
D) They are the only site of synthesis of plasma globulins.

Question 14

The extracellular enzyme in succus entericus is:

Accepted Answer

A) Dipeptidase. 
B) Entericlipase. 
C) Lactase. 
D) Enterokinase. 
A) Dipeptidase. 
B) Entericlipase. 
C) Lactase. 
D) Enterokinase.

Question 15

The followings are true statements about absorption from small intestine except:

Accepted Answer

A) Fructose is absorbed by facilitated diffusion. 
B) Glucose is absorbed by Na+ dependent 2ry active transport. 
C) Vit. B12 is absorbed by diffusion 
D) none 
A) Fructose is absorbed by facilitated diffusion. 
B) Glucose is absorbed by Na+ dependent 2ry active transport. 
C) Vit. B12 is absorbed by diffusion 
D) none

Question 16

Intestinal proteolysis is caused by the followings except:

Accepted Answer

A) Trypsin. 
B) Carboxypeptidase. 
C) Chymotrypsin. 
D) Pepsin. 
A) Trypsin. 
B) Carboxypeptidase. 
C) Chymotrypsin. 
D) Pepsin.

Question 17

All the following statements about bile pigments are true except:

Accepted Answer

A) They are formed from Hb in RECs. 
B) In blood bilirubin combines with plasma albumin to form conjugated bilirubin. 
C) Mostly urobilinogen passes with feces as stercobilinogen. 
D) none 
A) They are formed from Hb in RECs. 
B) In blood bilirubin combines with plasma albumin to form conjugated bilirubin. 
C) Mostly urobilinogen passes with feces as stercobilinogen. 
D) none

Question 18

Choose a single incorrect answer about bile salts:

Accepted Answer

A) Bile salts are secreted as conjugated bile salts by liver. 
B) They are converted to 2ry bile salts by action of intestinal bacteria. 
C) They help absorption of calcium and iron. 
D) Non of the above. 
A) Bile salts are secreted as conjugated bile salts by liver. 
B) They are converted to 2ry bile salts by action of intestinal bacteria. 
C) They help absorption of calcium and iron. 
D) Non of the above.

Question 19

Select the single correct answer about bile pigments:

Accepted Answer

A) The principal bile pigment is bilivirdin. 
B) Free bilirubin is the conjugated bilirubin. 
C) Cholebilirubin is the conjugated bilirubin. 
D) Urobilinogen is converted into bilirubin by action of bacteria. 
A) The principal bile pigment is bilivirdin. 
B) Free bilirubin is the conjugated bilirubin. 
C) Cholebilirubin is the conjugated bilirubin. 
D) Urobilinogen is converted into bilirubin by action of bacteria.

Question 20

Succus entericus is inhibited by the followings except:

Accepted Answer

A) Adrenaline and noradrenaline. 
B) Sympathetic stimulation. 
C) Prostaglandins 
D) endogenous opiates. 
A) Adrenaline and noradrenaline. 
B) Sympathetic stimulation. 
C) Prostaglandins 
D) endogenous opiates.

The volume of succus entericus per day is about:

The intestinal brush border help digestion by the followings except:

The main mechamism of succus entericus secretion is:

Contraction of gallbladder is described by the following statement except:

Bile salts promotes lipid absorption as a result of all the followings except:

Enteric lipase splits neutral fat into:

The following statements about bile salts are true except:

Emptying of gall bladder is stimulated by the followings except:

The following statements about succus entericus are true except:

The following statements are correct about functions of gall bladder except:

Cholera toxins cause diarrhea by:

Emptying of GB is inhibited by the followings except:

All the following are correct statements about liver cells except:

The extracellular enzyme in succus entericus is:

The followings are true statements about absorption from small intestine except:

Intestinal proteolysis is caused by the followings except:

All the following statements about bile pigments are true except:

Choose a single incorrect answer about bile salts:

Select the single correct answer about bile pigments:

Succus entericus is inhibited by the followings except:

Gastrointestinal Hormones and Functions

Digestive Physiology

Gastric Secretion and Functioning of the Stomach

Gastric Secretion and Vomiting

Pancreatic and Liver Secretions and Functions

Absorption and Motility in the Small Intestine

Digestive System Motility and Secretion

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Exam 6: Digestive System: Bile Secretion, Gallbladder Functions, and Succus Entericus Absorption

The volume of succus entericus per day is about:

The intestinal brush border help digestion by the followings except:

The main mechamism of succus entericus secretion is:

Contraction of gallbladder is described by the following statement except:

Bile salts promotes lipid absorption as a result of all the followings except:

Enteric lipase splits neutral fat into:

The following statements about bile salts are true except:

Emptying of gall bladder is stimulated by the followings except:

The following statements about succus entericus are true except:

The following statements are correct about functions of gall bladder except:

Cholera toxins cause diarrhea by:

Emptying of GB is inhibited by the followings except:

All the following are correct statements about liver cells except:

The extracellular enzyme in succus entericus is:

The followings are true statements about absorption from small intestine except:

Intestinal proteolysis is caused by the followings except:

All the following statements about bile pigments are true except:

Choose a single incorrect answer about bile salts:

Select the single correct answer about bile pigments:

Succus entericus is inhibited by the followings except:

Gastrointestinal Hormones and Functions

Digestive Physiology

Gastric Secretion and Functioning of the Stomach

Gastric Secretion and Vomiting

Pancreatic and Liver Secretions and Functions

Absorption and Motility in the Small Intestine

Digestive System Motility and Secretion

Filters