Template:Embryonic Spleen Timeline Table: Difference between revisions

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|  <center>[[Week 5]]</center>
|  <center>[[Week 5]]</center>
| <center>Carnegie stage {{CS14}}</center>
| <center>{{CS14}}</center>
| Carnegie stage {{CS14}} to {{CS17}}  
| Carnegie stage {{CS14}} to {{CS17}}  
appears as a bulge in the dorsal mesogastrium. Mesothelium pseudostratified until stage 16 replaced with high and then low columnar cells.
appears as a bulge in the dorsal mesogastrium. Mesothelium pseudostratified until stage 16 replaced with high and then low columnar cells.
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| <center>Carnegie stage {{CS15}}</center>
| <center>{{CS15}}</center>
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|-bgcolor="F5FAFF"  
|-bgcolor="F5FAFF"  
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| <center>Carnegie stage {{CS17}}</center>
| <center>{{CS17}}</center>
| Basement membrane present after this stage.
| Basement membrane present after this stage.
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| <center>[[Week 7]]</center>
| <center>[[Week 7]]</center>
| <center>Carnegie stage {{CS18}}</center>
| <center>{{CS18}}</center>
| Hematopoietic cells detected.
| Hematopoietic cells detected.
|-bgcolor="F5FAFF"  
|-bgcolor="F5FAFF"  
| <center>Week [[Week 8|8]]</center>
| <center>Week [[Week 8|8]]</center>
| <center>Carnegie stage {{CS20}}</center>
| <center>{{CS20}}</center>
| Spleen is now apparent. Mesenchymal cells differentiated from cells in dorsal mesogastrium. Sinus and hilus formation after this stage.
| Spleen is now apparent. Mesenchymal cells differentiated from cells in dorsal mesogastrium. Sinus and hilus formation after this stage.
|-bgcolor="F5FAFF"  
|-bgcolor="F5FAFF"  
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| <center>Carnegie stage {{CS23}}</center>  
| <center>{{CS23}}</center>  
| Arteries and veins parallel entries at this stage.
| Arteries and veins parallel entries at this stage.
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Revision as of 11:49, 30 April 2018

Human Embryonic Liver Development
Week
Carnegie Stage
Feature
Week 5
14
Carnegie stage 14 to 17

appears as a bulge in the dorsal mesogastrium. Mesothelium pseudostratified until stage 16 replaced with high and then low columnar cells.

15
Week 6
Carnegie stage 16
Mesothelium (pseudostratified} replaced with high columnar cells.
17
Basement membrane present after this stage.
Week 7
18
Hematopoietic cells detected.
Week 8
20
Spleen is now apparent. Mesenchymal cells differentiated from cells in dorsal mesogastrium. Sinus and hilus formation after this stage.
23
Arteries and veins parallel entries at this stage.
Human data.[1]

Links: spleen | Kyoto Collection | Timeline human development)

  1. Endo A, Ueno S, Yamada S, Uwabe C & Takakuwa T. (2015). Morphogenesis of the spleen during the human embryonic period. Anat Rec (Hoboken) , 298, 820-6. PMID: 25403423 DOI.