Science Quiz / Salivary Glands & Exocrine Pancreas

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Can you name the Salivary Glands, Exocrine Pancreas, & Gastric Physiolog?

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Score 0/52 ll Timer 12:00

Question	Answer
Where does protein digestion begin?
T/F: The composition of saliva changes with the flow rate.
T/F: Pancreatic juice is isotonic.
Would saliva be most plasma in high or low flow rates?
gland that is the main contributor to saliva (70%)
type of acinus that produces watery saliva that contains a amylase, lysozyme, peroxidases, and IgA
atropine inhibits ____ activation of salivary ducts
T/F: The ducts of the salivary gland are impermeable to water, while the ducts of the pancreas are permeable to water.
T/F: Pancreatic acinar cells are responsible for the bicarbonate secretion of the exocrine pancreas
pavlov's classical conditioning is an example of which phase of digetion?
Aldosterone acts on salivary duct cells to increase the reabsorbtion of which two ions?
t/F: the submandibular gland is a mucous secreting gland.
This enzyme is bound to the duodenal epithelial cells and activates trypsin
Saliva is characterized by the presence of which two molecules (ions)?
the major sympathetic receptor at acinar cells is ____.
T/F: In the intestinal phase, gastrin and the vagus nerve act to stimulate zymogen granule release.
Although, sympathetic innervation acts to activate salivary acinar cells, what prevents the release of saliva?
this channel is involved in cycling Cl back into the lumen of the pancreatic duct
mucous secreting salivary gland
solely serous secreting salivary gland
unit of salivary gland that is responsible for producing saliva
These cells in the duodenum are activated mainly by fat (or amino acids) and release CCK to increase pancreatic enzyme release
enzymes within salivary or exocrine glands are released in ...
At high flow rates, which two ions dominate pancreatic juice?
major event that occurs during the interdigestive phase
Dehydration, fear, sleep, aand anticholinergic drugs ____ (promotes... inhibits) activation of salivary glands

Question	Answer
At low flow rates, which two ions dominate pancreatic juice?
In the gastric and cephalic phases, the vagus can act to stimulate the release of bicarbonate by the duct cells. In the intestinal phase, what stimulates the release of bicarbonate
Which portion of the salivon primarily receives innervation for the autonomous nervous system
Enzyme responsible for activation of most of the pancreatic proteolytic emzymes
atropine inhibits ___ receptors
the phase of digestion that begins in the brain. An example includes the origination of the salivary reflex at the site of food
released by pancreatic ductal cells to neutralize the acidic chyme from the stomach
produces 25% of saliva
T/F: Saliva is usually a hypotonic solution.
These cells in the duodenum respond to H+ ions and release secretin in response to higher acid concetration
T/F: Only parasympathetic innervation stimulates saliva production
T/F: Saliva secretion is controlled by GI hormones.
Channel involved in taking the Cl out of the lumen of the pancreatic duct, while taking Bicarbonate from the blood into the lumen of the pancreatic duct
this phase of digestion occurs when a stimulus from the intestine sends feedback and instructions to other portions of the GI tract
In the gastric and cephalic phases, the pancreatic acinar cells release zymogen granules in response to activation of muscarinic cholinergic receptors as well as receptors for whic
the parasympathetic nervous system cause vasodilation by using which NT?
Which neurotransmitter stimulates the release of gastrin from G cells in the stomach?
In the intestinal phase, this hormone acts at acinar cells to cause the release of zymogen granules
bicarbonate concentration in the exocrine pancreatic juice is ____ than plasma
this phase of digestion occurs when a stimulus from the stomach influences function of the small intestine and other portions of the GI tract.
T/F: Patients with cystic fibrosis can present with malabsorption and steatorrhea, due to a deficiency of pancreatic enzymes
T/F: The ductal portion of the salivon acts to modify the ionic composition of saliva
this type of acinus helps to lubricate food
This hormone activates the CFTR channel
T/F: In addition to GRP, amino acids and peptides can stimulate G cells to release gastrin.
produces 5% of saliva

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Created Mar 25, 2012
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