Kidneys dissection

http://www.bristol.ac.uk/anatomy/elearn/inter/letsdissect.html

 https://www.google.es/url?sa=t&rct=j&q=kidney+dissection&source=web&cd=1&ved=0ahUKEwi9tv7r7czKAhUGuRoKHTHuCkYQFggdMAA&url=http%3A%2F%2Fwww.scienceteacherprogram.org%2Fpdf%2FJBader11KidneyDissectionGuide.pdf&usg=AFQjCNF82MbRq3ELyFK_f2lZT6kbjWzX9g&sig2=vWJl1G217tr0Vbefm6rluA