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Questions and Answers
What is the purpose of local intermittent segmentation contractions in the gastrointestinal tract?
What is the purpose of local intermittent segmentation contractions in the gastrointestinal tract?
- To absorb nutrients from the gut
- To release enzymes for digestion
- To propel the contents of the gut forward
- To mix the contents of the gut (correct)
What is the duration of most constrictions in the gut wall?
What is the duration of most constrictions in the gut wall?
- 30 to 60 seconds
- 1 to 2 minutes
- 1 to 5 seconds
- 5 to 30 seconds (correct)
How are peristaltic and constrictive movements modified in different parts of the gastrointestinal tract?
How are peristaltic and constrictive movements modified in different parts of the gastrointestinal tract?
- They are sped up in the small intestine for better absorption (correct)
- They are unchanged throughout the gastrointestinal tract
- They are slowed down in the stomach for better digestion
- They are reversed in the large intestine for waste elimination
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