File:Stage9 sem3.jpg: Difference between revisions

Human embryo

Stage 9 day 20, somites 3-4

Scanning EM selected region showing notochordal plate from the ventrolateral view (cut away from amniotic sac and yolk sac) showing the embryo and connecting stalk.

ventrolateral view is a more ventral and rostral view of Stage9 sem1 image.

Note:

1. the notochordal plate on ventral surface of embryo.
2. the large cilia present on the notochordal plate region.
3. the numerous small villi present on the entire epithelial cell layer.
4. large pale "blob" in centre of image is an artifact.

Original file name: Stage9day20somites3-4lateralsem3v2.jpg

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

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.

Embryonic Development