The epidermis and circular muscles of a leech, Erpobdella octoculata.
Image by Annette Bergter, University of Osnabrück.
1 month ago on January 25, 2012 at 09:42pm
The epidermis and circular muscles of a leech, Erpobdella octoculata.
Image by Annette Bergter, University of Osnabrück.
#muscles #leech #skin
plasticidad neuronal ven a mí