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15 Cards in this Set
- Front
- Back
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primordium of embryonic body cavities
-develops during 4th week |
intraembryonic coelom
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cranial end of intraembryonic coelom becomes
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future pericardial cavity
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caudal limbs of intraembryonic cavity become
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future pleural and peritoneal cavities
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mesentary consists of
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double layer of peritoneum extending from posterior abdominal wall
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lies lateral to the foregut and dorsal to the septum transversum
-has cranial and caudal ridges |
pericardioperitoneal canals
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cranial ridges of the pericardioperitoneal canals
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pleuropericardial folds
-superior to developing lungs -separate pleural from pericardial cavities |
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caudal ridges of the pericardioperitoneal canals
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pleuroperitoneal folds
-inferior to developing lungs -separate pleural from peritoneal cavities |
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enlargement of the pleuropericardial folds, becomes the partion that separates the pleural from pericardial cavities
-contain common cardinal veins |
pleuropericardial membranes
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drain the primordial venous system into the sinus venosus of the primordial heart
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common cardinal veins
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7th week the pleuropericardial membranes have fused with the ventral mesenchyme, which forms the
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primordial mediastinum
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enlargement of the pleuroperitoneal folds becomes the partition that separates the pleural from the peritoneal cavities
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pleuroperitoneal membranes
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during 6th week pleuroperitoneal membranes extend ventromedially and fuse with:
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dorsal mesentary of the esophagus
septum transversum |
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diaphragm develops from
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septum transversum
pleuroperitoneal membranes dorsal mesentary of the esophagus muscular ingrowth from the lateral body walls |
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phrenic nerve is located on the
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fibrous pericardium
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lung space filled with intestines because pleuroperitoneal membrane never closed
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congenital hiatal hernia
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