Berkas:Orientation zh.PNG|Source={{Derived from|Surface anatomy of the back-Gray.png|display=50}} |Date=2019-06-15 12:53 (UTC) |Author=* [[:File:Surface anatomy of the back-Gray. Uploaded
Berkas:CK12 Life Science2.pdfto remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate