Deck 5: Pancreatic and Liver Secretions and Functions

Question 1

Chemotrypsinogen in pancreatic juice is activated by:

A)Enterokinase
B)Alkaline PH
C)Trypsin
D)Bile salts

Answer 1

Trypsin

Question 2

Pancreatic lipase is activated by:

A)gastrin
B)Bile salts
C)Enterokinase
D)none

Answer 2

Bile salts

Question 3

All of the following statements concerning pancreatic secretion are true except:

A)Its pH is about 8
B)Has high HCO?? content
C)It's secretion is primarily under neural control
D)Contains digestive enzymes

Answer 3

It's secretion is primarily under neural control

Question 4

The following stimulate pancreatic secretion rich in enzymes and poor in HCO?? except:

A)CCK
B)Gatrin
C)Secretin
D)Vagal stimulation

Question 5

Loss of pancreatic secretion produces the following except:

A)Maldigestion
B)Malabsorption
C)Dehydration
D)Alkalosis

Question 6

Pancreatic amylase is activated by:

A)Bile salts
B)Trypsin
C)Cl ? ions
D)Enterokinase

Question 7

PH of pancreatic secretion is about:

A)1
B)6.5- 7.5
C)8
D)non

Question 8

he volume of pancreatic secretion per day is about:

A)0.6 L
B)1.5 L
C)3 L
D)non

Question 9

All the following statements concerning pancreatic secretion are true except:

A)Sympathetic stimulation inhibits pancreatic HCO?? secretion
B)The cephalic phase accounts for about 20 % of secretion after meal
C)Pancreatic HCO3 depresses further release of secretin
D)Contains enzymes which digest polysaccharides to monosaccharides

Question 10

Pancreatic secretion is inhibited by all the followings except:

A)Somatostatin
B)Glucagon
C)Acid in the duodenum
D)Sympathetic stimulation.

Question 11

All the following statements about pancreatic secretion are true except :

A)The intestinal phase is the main phase of pancreatic secretion .
B)Gastro-pancreatic reflex stimulates pancreatic secretion .
C)Failure of both pancreatic and biliary secretions is needed before steatorrhea develops .
D)none

Question 12

All the following are correct statements about pancreatic secretion except:

A)HCO3 rich fluid is secreted by ductal cells in response to secretin .
B)Secretion of enzymes by acinar cells occurs in response to CCK.
C)Vagotomy augment secretion of enzymes after meal .
D)none

Question 13

Select a single incorrect answer about pancreatic secretion.

A)Trypsinogen is activated by enterokinase.
B)Chymotrypsinogen is activated by trypsin
C)Pancreatic lipase is activated by alkaline pH.
D)none

Question 14

The following statements about pancreatic secretion are false except:

A)Pancreatic acini contain trypsin.
B)Vagal stimulation produces HCO3 rich juice.
C)The hormone which stimulates enzyme _ rich secretion also causes contraction of gall bladder.
D)none

Question 15

All the following are true about liver functions except:

A)Liver cells are the only important site for plasma albumin synthesis.
B)Liver cells can store vitamin B12.
C)Liver cells inactivates certain hormones by conjugation.
D)Essential fatty acids are synthesized in liver.

Question 16

All the following statements are correct about liver cells except:

A)They form non essential amino acids.
B)They form hippuric acid by conjugation of benzoate with glycine.
C)They form TPP from vitamin B6.
D)none

Question 17

Liver perform the following function except:

A)Haemopoiesis in adults.
B)Formation of about half of body lymph.
C)Formation of bile salts.
D)none

Question 18

Liver functions include all the followings except:

A)Excretion of bile.
B)Glycogenolysis
C)Glycogenesis.
D)Formation of essential amino acids.

Question 19

The following statements about bile secretion are correct exept:

A)Canalicular secretion represents 75%of bile secretion.
B)Ductular secretion represents 75% of bile secretion.
C)Bile is secreted by both the hepatocytes and cholangiocytes.
D)none

Question 20

all the following statement about bile secretion are true except:

A)Bile contain cholesterol and fatty acids.
B)Hepatic bile has lower specific gravity.
C)Gall bladder bile contain less organic constituent than hepatic bile
D)none

Question 21

Gall bladder bile is characterized by all the followings except:

A)It is relatively acidic
B)Darker in color.
C)More inorganic constituent.
D)Higher specific gravity.

Question 22

The following statement about bile salts are correct except:

A)They are 2 types 1ry&2nd
B)They are Na+ and K+ salts of bile acids conjugated with glucoronic acid.
C)They are actively reabsorbed from the terminal ilium.
D)none

Question 23

All the follwings are true about bile salt except;

A)50% of canalicular flow is dependent on bile salts in the enterohepatic circulation.
B)the amount of bill salts in stool is about 0.2-0.4gm/day
C)The total circulating pool of bile salts is 0.2-04gm
D)none

Question 24

The following are choleretics except:

A)Bile salts.
B)Secretin.
C)Acetylcholine.
D)Bile pigments

Question 25

Which of the followings has the highest pH:

A)gastric juice.
B)pancreatic juice.
C)hepatic bile.
D)succus entericus.