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Embryology of chicken; 36 hours after fertilization

Legend:

1  prosencephalon
2  optic vesicle
3  mesencephalon
4  rhombencephalon
5  heart
6  lateral mesoderm
7  somite
8  neural tube
9  sinus rhomboidalis
10  primitive streak
11  smal blood vessel
12  blood island

English name: Common chicken
Scientific name: Gallus domesticus
Familia: Phasianidae/Meleagridae
Classis: Aves
Phylum: Chordata (subphylum vertebrata)
Regnum: Animalia