Lähde: https://commons.wikimedia.org/wiki/File%3AHuman_skeleton_diagram_trace.svg
By Human_skeleton_diagram.png: (Source: Collier's New Encyclopedia, VIII (New York: P.F. Collier & Son Company, 1921), p. 446. derivative work: GregorDS (talk) 09:18, 21 December 2011 (UTC) (Human_skeleton_diagram.png) [Public domain or Public domain], via Wikimedia Commons
Huom! Kuvaa on muokattu (paper sovelluksella)