Salivary Glands & Exocrine Pancreas

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

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major event that occurs during the interdigestive phase
gland that is the main contributor to saliva (70%)
type of acinus that produces watery saliva that contains a amylase, lysozyme, peroxidases, and IgA
released by pancreatic ductal cells to neutralize the acidic chyme from the stomach
T/F: Patients with cystic fibrosis can present with malabsorption and steatorrhea, due to a deficiency of pancreatic enzymes
T/F: Saliva secretion is controlled by GI hormones.
produces 5% of saliva
bicarbonate concentration in the exocrine pancreatic juice is ____ than plasma
T/F: In addition to GRP, amino acids and peptides can stimulate G cells to release gastrin.
Although, sympathetic innervation acts to activate salivary acinar cells, what prevents the release of saliva?
At low flow rates, which two ions dominate pancreatic juice?
solely serous secreting salivary gland
Saliva is characterized by the presence of which two molecules (ions)?
Aldosterone acts on salivary duct cells to increase the reabsorbtion of which two ions?
this type of acinus helps to lubricate food
T/F: In the intestinal phase, gastrin and the vagus nerve act to stimulate zymogen granule release.
this phase of digestion occurs when a stimulus from the stomach influences function of the small intestine and other portions of the GI tract.
atropine inhibits ___ receptors
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
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
the phase of digestion that begins in the brain. An example includes the origination of the salivary reflex at the site of food
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 juice is isotonic.
T/F: Only parasympathetic innervation stimulates saliva production
Which neurotransmitter stimulates the release of gastrin from G cells in the stomach?
These cells in the duodenum respond to H+ ions and release secretin in response to higher acid concetration
In the intestinal phase, this hormone acts at acinar cells to cause the release of zymogen granules
this phase of digestion occurs when a stimulus from the intestine sends feedback and instructions to other portions of the GI tract
pavlov's classical conditioning is an example of which phase of digetion?
t/F: the submandibular gland is a mucous secreting gland.
the parasympathetic nervous system cause vasodilation by using which NT?
T/F: Pancreatic acinar cells are responsible for the bicarbonate secretion of the exocrine pancreas
the major sympathetic receptor at acinar cells is ____.
T/F: The composition of saliva changes with the flow rate.
Enzyme responsible for activation of most of the pancreatic proteolytic emzymes
Dehydration, fear, sleep, aand anticholinergic drugs ____ (promotes... inhibits) activation of salivary glands
Would saliva be most plasma in high or low flow rates?
These cells in the duodenum are activated mainly by fat (or amino acids) and release CCK to increase pancreatic enzyme release
T/F: Saliva is usually a hypotonic solution.
mucous secreting salivary gland
This hormone activates the CFTR channel
unit of salivary gland that is responsible for producing saliva
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
Where does protein digestion begin?
At high flow rates, which two ions dominate pancreatic juice?
enzymes within salivary or exocrine glands are released in ...
produces 25% of saliva
T/F: The ductal portion of the salivon acts to modify the ionic composition of saliva
atropine inhibits ____ activation of salivary ducts
This enzyme is bound to the duodenal epithelial cells and activates trypsin
this channel is involved in cycling Cl back into the lumen of the pancreatic duct
Which portion of the salivon primarily receives innervation for the autonomous nervous system

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Created Mar 25, 2012ReportNominate
Tags:Exo, gland