Concept
Version 6
Created by Boundless
Vertebrate Axis Formation
Body axes
Animal bodies have three axes for symmetry: anterior/posterior (front/behind), dorsal/ventral (back/belly), and lateral/medial (side/middle).
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Organogenesis and Vertebrate Formation. October 17, 2013."
http://cnx.org/content/m44850/latest/Figure_43_06_03.jpg
OpenStax CNX
CC BY 3.0.