Talk:BGDA Practical Placenta - Villi Development
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Original - Virtual Slides - Placenta
Human Villi Timeline
The placental vill development data below is based upon a recent immunochemistry confocal laser scanning microscope (CLSM) study.[1]
Note that the paper uses clinical gestational age (GA) from last menstrual period (LMP) and has been corrected for post-conception (fertilization) age, approximately 14 days later.
Fertilization Age
(weeks) |
Gestational Age
(weeks) |
Vessel Lumen Diameter
(range in microns, µm) |
Features |
3 to 4 | 5 and 6 | 10 - 15 |
|
5 to 6 | 7 and 8 | 10 - 26 |
|
7 to 8 | 9 and 10 | 60 - 75 two central vessels
26 - 34 capillary network |
|
9 to 10 | 11 and 12 | 70 - 90 two central vessels
26 - 34 capillary network |
|
Reference
- ↑ <pubmed>17545656</pubmed>