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Questions and Answers
How is retching initiated?
How is retching initiated?
- Sudden strong contraction of intercostal muscles
- Forced expiration against a closed glottis
- Sudden sharp contraction of the diaphragm
- Forced inspiration against a closed glottis (correct)
What happens during retching in terms of pressure?
What happens during retching in terms of pressure?
- Intrathoracic pressure decreases
- Duodenal pressure increases (correct)
- Duodenal pressure decreases
- Intrathoracic pressure increases
What is the main outcome of segmentation?
What is the main outcome of segmentation?
- Mixing of gut contents with digestive juices (correct)
- Localization of gut into small segments
- Rapid movement of gut contents in an aboral direction
- Constriction of circular smooth muscles
What characterizes a slow wave in the small intestine?
What characterizes a slow wave in the small intestine?
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Why does segmentation slow down gut movement?
Why does segmentation slow down gut movement?
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Which muscle contractions assist in vomiting?
Which muscle contractions assist in vomiting?
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What is the key difference between retching and vomiting?
What is the key difference between retching and vomiting?
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What is the primary function of slow waves in the small intestine?
What is the primary function of slow waves in the small intestine?
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What effect does segmentation have on the gut contents?
What effect does segmentation have on the gut contents?
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What is the role of the LES in the process of retching?
What is the role of the LES in the process of retching?
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