Digestive System Flashcards
Amylase is a digestive enzyme from the
a) stomach
b) pancreas
c) spleen
d) liver
b) pancreas
it is an enzme that catalyses the breakdown of starch in to sugars.
Which hormone causes the pancreas to release an enzyme rich juice?
a) insulin
b) cholecystokinin
b) cholecystokinin
cholecystokinin is produced by the walls of the duodenum upon detection of acidic food, proteins and fats
Which blood vessels do nutrients go to after leaving the SI?
a) inferior mesenteric vein
b) superior mesenteric vein
b) superior mesenteric vein
Which of the following anchors the liver to the stomach?
a) lesser omentum
b) greater omentum
a) lesser omentum
which of the following is not an accessory digestive organ?
a) lips
b) salivary gland
c) liver
a) lips
the pancreatic duct transports secretions from the pancreas to the
a) duodenum
b) liver
a) duodenum
What is the beginning of the LI called?
a) cecum
b) common bile duct
a) cecum
Which of the following is classified as an enzyme?
a) protease
b) galactose
a) protease
A damaged liver would predominantly affect the digestion of
a) lipids
b) carbohydrates
a) lipids
is “ase” an enzyme or a sugar?
enzyme
is ose a sugar or an enzyme?
sugar
is maltase an enzyme or a sugar?
enzyme
what does the suffix “ose” stand for?
a) sugar
b) enzyme
a) sugar
what does the suffix “ase” stand for?
a) sugar
b) enzyme
b) enzyme
any substance that is acted upon by an enzyme is called a
a) polypeptide
b) substrate
b) substrate
one of the major functions of the LI is to
a) reabsorb 95% of ingested water
b) remove waste material
b) remove waste material
In enzyme contolled reactions, the role of certain vitamins such as niacin is to act as
a) substrate
b) coenzyme
b) coenzyme
Which of the following is not an accessory structure of the digestive system?
a) LV
b) SP
b) SP
salivary amylase secreted into the oral cavity starts the digestion of
a) starch
b) lipids
a) starch
how many pairs of salivary glands are there?
a) 4
b) 3
c) 5
d) 6
a) 4
large mucosal folds formed when the stomach is empty are called?
a) the muscularis layer
b) rugae
b) rugae
during digestion, proteins are broken down into molecules of
a) nucleic acids
b) amino acids
b) amino acids
Parietal cells in the lining of the ST secrete?
a) regulatory hormones
b) HCl and instrinic factor
b) HCl and instrinic factor
which muscles protrude and retract the tongue, moving it from side to side?
a) extrinsic tongue muscles
b) intrinsic tongue muscles
a) extrinsic tongue muscles
bile is produced in the
a) LV
b) ST
a) LV
all of the following are substances found in pancreatic juice EXCEPT
a) pepsin
b) lipase
a) pepsin
where does the most nutrient absorption occur?
a) duodenum and jejunem
b) LI and ileum
a) duodenum and jejunem
the final portion of the SI is the
a) colon
b) ileum
b) ileum
The LV, GB and pancreas are connected to ducts which enter the
a) duodenum
b) ileum
a) duodenum
What is the pyloric pump?
a) chyme moving from teh ST into the SI
b) food movement through the esophagus into the ST
a) chyme moving from the ST into the SI
