Term
| What structure do endoderm cells migrate down in early embryogensis? |
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Definition
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Term
| What bilmainar structure is the embryonic endoderm derived from |
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Definition
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Term
| What bilaminar structure is the yolk sac endoderm derived from? |
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Definition
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Term
| What are the 3 major derivatives of the endoderm |
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Definition
1. Gut
2. Urinary bladder
3. Pharynx |
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Term
| What interaction between epithelium and mesenchyme cells lead to the development of the major structures |
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Definition
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Term
| What is a tracheoesophageal fistula and what is the most common form? |
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Definition
| It is a disorder where the trachea is connected to the esophogus. The most common variant is a branch in the trachea leading to the bottom part of the esophogus. |
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Term
| What major cellular movement leads to the formation of the gut as a different structure then the yolk sac? |
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Definition
| Folding of the endoderm and eventual pinching of the endoderm to form 2 distinct rings, one for the yolk sac and one for the gut |
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Term
| During what week does the separation of the gut from the abdomen wall occur? |
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Definition
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