1. 150 Early development, chick embryo

2. Chick embryo

3. 24 hours old chick embryo
1 . proamnion
3. neural folds
4. somites
5 . neuroporus anterior
6 . neural tube

4. 33 hours old chick embryo
1. area vasculosa
2. blood islands
3. somites
4. spinal cord
5. non-segmented paraxial mesodermal plate
6. neural folds
7. primitive streak

5. 33 hours old chick embryo 8 Infundibulum 9. Proamnion
10. Mesencephalon
11. Caudální oblast subencephalické kapsy
12. Metencephalon
13. Neuromery v oblasti myelencephala
štěrbina mezi somity
15. Notochord pod rozšířenou neurální brázdou

6. 48 hours old chick embryo 1. stomodeum 2. optic vesicle
3. maxillary process
4. notochord
5. isthmus
6. mandibullar process
7. otic vesicle
8. 2nd branchial cleft
9. 3rd branchial cleft
10. caudal intestinal portal

7. Embryo in the neurulation period
chick 2ED
human 3 weeks

8. Chick embryo 3ED and human embryo 5th week

9. Chick embryo 4ED and human embryo 5th week

11. Developmental stages Hamburgera- Hamiltona

13. Neurulation – neural tube is closed somites laterally

14. Chick embryo, stage HH9 head region

15. Neurulation

16. Neurulation HH9 trunk

17. Neurulation – neural groove, neural folds before fusion in midline

18. Chick embryop HH9 – caudal region