GIT MCQ
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You ask a patient to take out his tongue and it deviates to the left side. This is due to damage of the :
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💡Explanation :-
- The sphincters are basically a band of muscles that regulate the opening and closing of any opening in the body.
- The sphincter muscles towards the esophagus are called the cardiac sphincter because they are close to the heart or the lower sphincter because it brings the food down.
- The opening towards the intestine is called the pylorus and the muscles guarding them are the pyloric sphincter.
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Which one of the following arteries is a terminal branch of the external carotid artery ?
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The band of muscles guarding the two openings of the stomach towards the esophageal and intestinal sides is called as ..........
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The movement of an esophagus to help the food down the GI tract ...........
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A vestigial organ for humans found near the junction of the small and large intestine is the ..............
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Villi in the large intestine are finger-like projections of one layer of the wall. Which one?
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Which of the following regions of the GI tract is characterized by stratified squamous epithelium?
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Which of the following epithelial types is most closely associated with active absorption at a mucosal surface, as in small intestine and colon?
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Along most of the GI tract (except for the oral cavity and lower anal canal), the basal boundary of the mucosa is marked by:
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💡Explanation of the other choices :
📍The submucosa: is connective tissue. Within it are lymphatic vessels and nerve plexuses.Meissner's plexus is located in the submucosa.
📍The muscularis externa: consists of thick layers of smooth muscle. It contains Auerbach's plexus.
The outer layer of the GI tract is either an adventitia or serosa.
📍The serosa consists of only a single layer of epithelial cells and underlying connective tissue.
📍The adventitia: is the outer layer of the GI tract when it is abutting another organ the posterior abdominal wall.
