Fish embryo. Historical artwork showing stages in the development of a fish embryo. Figures 1 and 2 show gastrulation,the process of differentiation whereby the 3 germ layers (ectoderm,mesoderm and endoderm) are formed. Figure 3 shows neuralation,the formation of the neural tube,which will become the brain and spinal cord. Figure 4 shows the somites (blocks of mesoderm on either sode of neural tube),which will give rise to muscular and skeletal tissues. Figure 5 shows further differentiation of the head | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kulyk, Mehau |
Bildgröße: | 3471 px × 5037 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |