File:Stage13 bf6.gif
From Embryology
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Human Embryo Carnegie Stage 13
5mm Embryo appears as Carnegie Stage 13 from ectopic pregnancy.
- Embryo is enclosed in amniotic membrane.
- Larger cavity is chorionic space (coelom).
- Placental villi are visible on left of image.
- Stage 13 Links: Embryo and Placenta | Embryo | Embryo (label) | Embryo (animated) | Embryo (animated large) | Head region | Head region (label) | Body region | Body region (label) | Carnegie stage 13
Stage 13
- Week 4-5, 26 - 30 days, 3 - 5 mm, Somite Number 21 - 29
- Ectoderm: Neural tube continues to close, Caudal neuropore closes, forebrain
- Mesoderm: continued segmentation of paraxial mesoderm (21 - 29 somite pairs), heart prominence
- Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
- Body: heart, liver, umbilical, early upper limb bulge
Image: Dr Steven O'Connor (Houston, Texas)
Carnegie Stages
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline
- Dr Mark Hill 2013, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:44, 12 August 2011 | | 901 × 676 (463 KB) | S8600021 (Talk | contribs) | ==Human Embryo Carnegie Stage 13== 5mm Embryo appears as Carnegie Stage 13 from ectopic pregnancy. * Embryo is enclosed in amniotic membrane. * Larger cavity is chorionic space (coelom). * Placental villi are visible on left of image. '''Stage 13''' * W |
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