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. 2017 Mar 21;5:e3103. doi: 10.7717/peerj.3103

Figure 2. Generalized tetrapod with anatomical/developmental axes defined for the hindlimb: cranial/caudal (towards the head/tail, respectively), proximal/distal (toward/further from the trunk, respectively), dorsal/ventral (towards the back/belly, respectively).

Figure 2

Illustration: Manuela Bertoni.