1.The neural and hormonal signals impact the gastrointestinal motility by affect
ID: 83879 • Letter: 1
Question
1.The neural and hormonal signals impact the gastrointestinal motility by affecting the contraction of smooth muscle in gastrointestinal tract. The neural and hormonal signals impact the gastrointestinal motility by affecting the contraction of smooth muscle in gastrointestinal tract.
a.true
b.false
2.The force of gastric contraction increases in response to which of the following?
3.The presence of protein digestion products and fats in the duodenum primarily stimulates the secretion of which of the following?
a.cholecystokinin (CCK) b.gastrin c.secretin d. glucose-dependent insulinotropic peptide (GIP)Explanation / Answer
1. True
Gastrointestinal motility is organized by a multifaceted set of neural and hormonal signals. Nervous regulator originates from the enteric nervous system as well as sympathetic and parasympathetic systems. A huge set of hormones have been revealed to influence gastrointestinal motility - like, both cholecystokinin and gastrin act to relax the proximal stomach and increase contractions in the distal stomach. The base line is that the patterns of gastrointestinal motility expected are a result from smooth muscle cells mixing a huge number of inhibitory and stimulatory signals.
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