Phylum Echinodermata
Class Asteroidea
Sea star
 The images below were obtained from BIODIDAC
                The images are copyrighted by BIODIDAC and you should go directly to
that site to obtain images and permission to use them.
 

Oral surface
 

Water vascular system (injected with blue dye)

 Phylum Echinodermata
Class Asteroidea
Sea star

Reproductive system showing the paired gonads
 

Internal anatomy