Term
| What structures come together to form the gut tube |
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Definition
| formed from the incorporation of the dorsal part of the yolk sac into the embryo due to the craniocaudal folding and lateral folding the embryo. |
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Term
| Where are the epithelial linings and glands of the mucosa dervied from in the GI tract? |
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Definition
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Term
| With the exception of the mucosa what are structures in the GI tract derived from? |
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Definition
| They are derived from the visceral mesoderm. |
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Term
| What does the tracheoesophageal fold divide? |
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Definition
| It divides the foregut into the trachea ventrally and the esophagus dorsally. |
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Term
| what is the cause of esophageal stenosis? |
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Definition
| occurs when the lumen of the esophagus is narrowed as a result of incomplete recanalization |
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Term
| what is the cause of esophageal atresia? |
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Definition
| When the tracheoesophageal septum deviates too far dorsally it causes the esophagus to end as a closed tube. Is associated clinically as polyhydramnios. |
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Term
| Stratified Squamous epithelium, mucosal glands, and submucosal glands of the definitive esophagus are derived from what? |
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Definition
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Term
| Lamina Propria, muscularis mucosa, submucosa, skeletal muscle, and smooth muscle of muscularis externa, and adventita of esophagus are derived from what? |
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Definition
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