Category:Week 3
Introduction
This Embryology category shows some key events of human development during Week 3 of the embryonic period of the first eight weeks (weeks 1 - 8) following fertilization. This period is also considered the organogenic period, when most organs within the embryo have begun to form. There are links to more detailed descriptions which can be viewed in a week by week format, by the historic Carnegie stages or integrated into a Timeline of human development.
Online resources available include: individual images of all Carnegie stages, scanning electron micrographs of the earlier stages, cross-sections showing internal structures at mid- and late-embryonic, 3D reconstructions of internal structures, animations of processes, ultrasound scans and information about abnormalites of development.
Note that there is variability in the actual timing of specific events and at the end of this period fetal development begins.
Week: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Carnegie stage: | 1 2 3 4 | 5 6 | 7 8 9 | 10 11 12 13 | 14 15 | 16 17 | 18 19 | 20 21 22 23 |
Subcategories
This category has the following 46 subcategories, out of 46 total.
C
- Carnegie Embryo 10157
- Carnegie Embryo 10174
- Carnegie Embryo 136
- Carnegie Embryo 1399
- Carnegie Embryo 1878
- Carnegie Embryo 3412
- Carnegie Embryo 5080
- Carnegie Embryo 5960
- Carnegie Embryo 5982
- Carnegie Embryo 6630
- Carnegie Embryo 6815
- Carnegie Embryo 7170a
- Carnegie Embryo 7545
- Carnegie Embryo 7568
- Carnegie Embryo 7640
- Carnegie Embryo 7650
- Carnegie Embryo 7666
- Carnegie Embryo 7701
- Carnegie Embryo 7802
- Carnegie Embryo 7822
- Carnegie Embryo 7949
- Carnegie Embryo 7972
- Carnegie Embryo 8206
- Carnegie Embryo 8255
- Carnegie Embryo 8320
- Carnegie Embryo 8352
- Carnegie Embryo 8361
- Carnegie Embryo 8371
- Carnegie Embryo 8602
- Carnegie Embryo 8671
- Carnegie Embryo 8725
- Carnegie Embryo 8727
- Carnegie Embryo 8752
- Carnegie Embryo 8756
- Carnegie Embryo 8820
- Carnegie Embryo 9009
- Carnegie Embryo 9217
- Carnegie Embryo 9251
- Carnegie Embryo 9286
- Carnegie Stage 7
- Carnegie Stage 8
- Carnegie Stage 9
Pages in category 'Week 3'
The following 163 pages are in this category, out of 163 total.
2
B
- BGDA Practical 3 - Week 3 Summary
- Template:BGDA Practical 6 - Week 3 Interactive
- BGDA Practical 7 - Week 3
- Template:BGDB Practical 6 - Late Embryo Interactive
- Template:BGDB Practical 6 - Trilaminar Embryo Interactive
- Book - Contributions to Embryology Carnegie Institution No.52
- Template:Buccopharyngeal membrane
C
- Template:Carnegie Collection stage 9 table
- Template:Carnegie Embryo Stage8
- Carnegie stage 7
- Template:Carnegie stage 7 links
- Carnegie stage 8
- Template:Carnegie stage 8 links
- Carnegie stage 9
- Carnegie stage 9 gallery
- Template:Carnegie Stage 9 image links
- Template:Carnegie stage 9 links
- Template:Carnegie stage table week 3
- Template:CE10157
- Template:CE10174
- Template:CE1201
- Template:CE136
- Template:CE1399
- Template:CE1878
- Template:CE3412
- Template:CE3707
- Template:CE3709
- Template:CE3710
- Template:CE391
- Template:CE4216
- Template:CE4900
- Template:CE5072
- Template:CE5074
- Template:CE5080
- Template:CE5960
- Template:CE5982
- Template:CE6330
- Template:CE6503
- Template:CE6630
- Template:CE6740
- Template:CE6815
- Template:CE7251
- Template:CE7568
- Template:CE7640
- Template:CE7650
- Template:CE7666
- Template:CE7700
- Template:CE7701
- Template:CE7771
- Template:CE7802
- Template:CE7822
- Template:CE7949
- Template:CE7950
- Template:CE7972
- Template:CE8000
- Template:CE8004
- Template:CE8020
- Template:CE8116
- Template:CE8139
- Template:CE8155
- Template:CE8171
- Template:CE8206
- Template:CE8215
- Template:CE8225
- Template:CE8244
- Template:CE8255
- Template:CE8299
- Template:CE8308
- Template:CE8320
- Template:CE8329
- Template:CE8352
- Template:CE8355
- Template:CE8361
- Template:CE8370
- Template:CE8371
- Template:CE8372
- Template:CE8505b
- Template:CE8552
- Template:CE8581
- Template:CE8602
- Template:CE8671
- Template:CE8725
- Template:CE8727
- Template:CE8752
- Template:CE8756
- Template:CE8773
- Template:CE8789
- Template:CE8818
- Template:CE8820
- Template:CE8942
- Template:CE8963
- Template:CE8964
- Template:CE8998
- Template:CE8999
- Template:CE9009
- Template:CE9123
- Template:CE9154
- Template:CE9217
- Template:CE9247
- Template:CE9251
- Template:CE9286
- Template:CE9297
- Template:CE9350
- Template:CE9870
- Template:CEC470
- Template:CS6
- Template:CS7
- Template:CS8
- Template:CS9
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P
- Paper - A human embryo of two somites in situ
- Paper - A human embryo with head-process and commencing arch enteric canal
- Paper - A presomite human embryo showing a yolk-sac duct
- Paper - A presomite human embryo showing an early stage of the primitive streak
- Paper - The Falkiner ovum
- Template:Primitive node
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Media in category 'Week 3'
The following 178 files are in this category, out of 178 total.
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- HillH159 Stage 8 bf01.jpg 1,807 × 1,768; 237 KB
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- Stage 9 SEM1.jpg 347 × 450; 42 KB
- Stage13 crown rump length.jpg 288 × 371; 10 KB
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- Stage7 notochord.jpg 690 × 800; 70 KB
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- Stage7 primitive streak labelled.jpg 500 × 375; 13 KB
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- Stage7 SEM1.jpg 450 × 333; 40 KB
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