Search Sitemap   
Nederlands    
Afzender
Radboud universityFaculty of ScienceBiologyHOMEIMAGE GALLERY > Search in gallery

Search in gallery

Back to Medium sized version | With labels

Embryology of sea urchin: 4-cells stage

Legend:

fertilization membrane
blastomeres (4x)
first cleavage plane
second cleavage plane

English name: Sea urchin
Scientific name: Psammechinus sp.
Familia: Echinidae
Classis: Echinoidea
Phylum: Echinodermata
Regnum: Animalia

In this isolecithale egg type the cleavage planes are oriented orthogonally (perpendicular) and radially (star-like) relative to each other.
To next stage.
One stage back.


last modified: 5 Jun 2014