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From where is the parasympathetic innervation of the foregut?
From where is the parasympathetic innervation of the midgut?
From where is the parasympathetic innervation of the hindgut?
Pelvic splanchnic nerves
From where is the sympathetic innervation of the GI system?
spinal cord from T5-L3 to prevertebral ganglia
In the _________ phase, the presence of food activates sensory receptors.
In the _________ phase, food in the stomach activates chemo- and mechano-receptors in gastric mucosa.
In the _________ phase, chyme in intestine stimulates chemo- and mechano-receptors in intestinal mucosa.
In the _________ phase, it is between meals and secretory and motor activity is minimal.
Spontaneous cyclical fluctuations of membrane potential in GI smooth muscle are called __________.
Does the stomach or intestine have a higher slow wave frequency?
The primary stimulus increasing gastric motor activity is _________.
The presence of acid in the SI stimulates the release of __________ (from SI cells).
The presence of fatty acid in the SI stimulates the release of __________ (from SI cells).
The presence of acid in the SI stimulates the release of __________ (from pancreas cells).
Of solids, lipids, and liquids, which empties the stomach fastest?
Of solids, lipids, and liquids, which empties the stomach slowest?
Slow waves determine the frequency of ________ and ________.
peristalsis and segmentation
A periodic wave of activity that occurs in the fasting state is the _____________.
Migrating Motor Complex
The Migrating Motor Complex occurs every ___ to ___ minutes.
75 to 90
Distention of the stomach cause the ileocecal sphincter to ______.
Filling of acending colon causes _________ contractions.
haustral (segmental) contractions
How often do mass movements occur in the transverse colon?
What is absorbed in the colon?
Water and electrolytes
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