150 Early development, chick embryo

Chick embryo

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

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

33 hours old chick embryo 8 Infundibulum 9. Proamnion 10. Mesencephalon 11. Caudální oblast subencephalické kapsy 12. Metencephalon 13. Neuromery v oblasti myelencephala 14. 5. štěrbina mezi somity 15. Notochord pod rozšířenou neurální brázdou

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

Embryo in the neurulation period chick 2ED human 3 weeks

Chick embryo 3ED and human embryo 5th week

Chick embryo 4ED and human embryo 5th week

Developmental stages Hamburgera- Hamiltona

Neurulation – neural tube is closed somites laterally

Chick embryo, stage HH9 head region

Neurulation

Neurulation HH9 trunk

Neurulation – neural groove, neural folds before fusion in midline

Chick embryop HH9 – caudal region