File:Stage9 sem1.jpg
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Human embryo
Stage 9, day 20, somites 3-4
Scanning EM lateral view (cut away from amniotic sac and yolk sac) showing the embryo and connecting stalk.
Note:
- the relative size of the embryo.
- the shape of the early folded embryonic disc and rostro-caudal bendings.
- the size and shape of the brain fold region.
- the primitive node and streak (left) beside connecting stalk.
- the position of the prechordal plate (cardiogenic region) ventral to brain fold.
Original file name: Stage9day20somites3-4lateralsem1-1000px.jpg
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Image Source: Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of Prof Kathy Sulik, from embryos collected by Dr. Vekemans and Tania Attié-Bitach. Images are for educational purposes only and cannot be reproduced electronically or in writing without permission.
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current | 12:25, 22 August 2009 | 1,000 × 627 (80 KB) | S8600021 (talk | contribs) | Human embryo Stage 9 day 20, somites 3-4 Scanning EM lateral view (cut away from amniotic sac and yolk sac) showing the embryo and connecting stalk. Note: # the relative size of the embryo. # the shape of the early folded embryonic disc and rostro-cau |
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