Term
| GI epithelium and smooth muscle |
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Definition
| endoderm supported by splanchnic lateral plate mesoderm |
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Term
| foregut proper / supplied by |
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Definition
| stomach, proximal duodenum, gall bladder, liver, pancreas / celiac artery |
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Term
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Definition
| distal duodenum to 2/3 transverse colon / superior mesenteric artery |
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Term
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Definition
| distal 1/3 transverse colon through rectum / inferior mesenteric artery |
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Term
| stomach - differential growth and rotations |
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Definition
| starting: ventral mesentary ventral, dorsal dorsal, left and right vagal branches left and right. rotation pulls antrum of stomach inferiorly and rotates stomach such that the ventral mesentary is right, dorsal is left, left vagus is ventral, right vagus is dorsal. about 90 degrees. |
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Term
| lesser and great omentum? |
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Definition
| lesser hangs on ventral mesentary on stomach, greater > dorsal |
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Term
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Definition
| ventral bud swings over and joins dorsal bud, ducts fuse. pancreas develops within the mesentary |
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Term
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Definition
| annular pancreas (ventral bud splits and goes both ways), accessory duct |
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Term
| other than the pancreas, what develops in the ventral and dorsal mesentary? |
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Definition
| v - liver: falciform ligament is most ventral remnant. d - spleen: splenorenal ligament forms most dorsal remnant. hepatogastric and gastrosplenic ligaments in the obvious places. |
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Term
| how do stomach, liver and spleen rotate as they develop? |
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Definition
| start in a straight line ventral to dorsal, end with liver off to the right and spleen off to the left |
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Term
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Definition
| hepatogastric ligament area |
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Term
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Definition
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Term
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Definition
| descends from gastrosplenic ligament area |
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Term
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Definition
| epiploic foramen = only opening to lesser sac |
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Term
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Definition
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Term
| physiological umbilical herniation and rotations |
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Definition
| this is how the intestines develop. cecal diverticulum moves from lower left up and down again to the lower right. superior mesenteric artery must not rotate along with the intestines. |
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Term
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Definition
| malrotation, meckel's diverticulum (from yolk stalk) |
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