Term
| Of what origin is the yolk sac? |
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Definition
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Term
| To what organ systems does the yolk sac contribute? (8) |
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Definition
| hematopoietic, immune, endocrine, reproductive, urinary, auditory, respiratory, and digestive |
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Term
| What is the long tube and it's two sections that are formed from the yolk sac? |
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Definition
| the villetine duct and allantois |
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Term
| What are the 4 parts of the gut tube? |
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Definition
| The pharyngeal gut, foregut, hindgut, and midgut. |
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Term
| What is the dorsal mesentary made of and what does it do? |
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Definition
| Made of splanchnic mesoderm and it suspends the foregut, midgut, and hindgut along the midline of the embryo. |
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Term
| What does the ventral mesentary do? |
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Definition
| It tethers the foregut along the midline as well but there is no vetnral mesentary beyond the hepatic direticulum |
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Term
| What forms the greater omentum? |
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Definition
| The dorsal mesentary after it enlarges |
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Term
| What is the dorsal mesentary of the stomach called? |
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Definition
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Term
| What does the ventral mesogastrium become? |
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Definition
| The falciform ligament and the lesser omentum |
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Term
| What's the hepatic diverticulum? |
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Definition
| It's a ventral structure that has 3 buds: the liver, gallbladder, and ventral pancreas bud. |
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Term
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Definition
| immediately above the liver and the liver grows into portions of it. |
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Term
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Definition
| arises in the dorsal mesogastrium and is joined by the ventral pancreas bud. they fues and become retroperitoneal. |
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Term
| What four organs drain into the second portion of the duodenum? |
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Definition
| The gallbladder, the liver, the spleen, and the pancreas |
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Term
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Definition
| the time before 10 weeks of fetal development when the midgut an hindgut exceed the volume of the abdominal cavity so the bowel herniates into the connecting stalk. |
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Term
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Definition
| where the retroperitoneal duodenum perforates the dorsal mesentary of the colon |
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Term
| The allantois becomes the: |
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Definition
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Term
| The distal hindgut becomes the: |
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Definition
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Term
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Definition
| a shelf of splanchnic mesoderm that seperates the distal hindgut and the allantois |
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Term
| Tracheo-esophageal fistula |
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Definition
| when the elongating lung bud and the adjacent elongating esophagus fues to share a lumen |
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Term
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Definition
| the esophagus ends in a blind pouch |
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Term
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Definition
| pancreatic tissue completely surrounds and narrows the duodenum. Occurs when pieces of the pancreas are deposited along the path of the migrating ventral pancreas |
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Term
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Definition
| vitellin duct stays open, present in 2-4% of population |
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Term
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Definition
| abdominal organs remain in the umbilical cord, half of affected individuals have an chromosomal anomoly |
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Term
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Definition
| Similar to omphalocele but less severe. A portion of intestines protrudes the umbilicus but is covered by skin and subcutaneous tissue. |
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Term
| What's the vascular supply to each segment of the gut? |
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Definition
The pharyngeal arch: aortic arch system
Foregut: Celiac Artery
Midgut: SMA
Hindgut: IMA |
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