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Questions and Answers
Which part of the gastrointestinal tract prevents reflux of stomach contents back into the esophagus?
Which part of the gastrointestinal tract prevents reflux of stomach contents back into the esophagus?
- Lower esophageal sphincter
- Cardiac sphincter (correct)
- Pyloric sphincter
- Upper esophageal sphincter
What is the primary function of the stomach?
What is the primary function of the stomach?
- Elimination of waste products
- Storage of swallowed food and liquid (correct)
- Production of digestive enzymes
- Absorption of nutrients into the bloodstream
What is the function of the upper esophageal sphincter?
What is the function of the upper esophageal sphincter?
- Mixing food with digestive juices
- Allowing food to enter the esophagus from the mouth (correct)
- Preventing reflux of stomach contents into the esophagus
- Preventing air from entering the esophagus during breathing
What is the final part of the gastrointestinal tract where defecation occurs?
What is the final part of the gastrointestinal tract where defecation occurs?
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Which part of the gastrointestinal tract contracts to propel food through the length of the GI tract?
Which part of the gastrointestinal tract contracts to propel food through the length of the GI tract?
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