File:Prentiss1906 fig05.jpg

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Fig. 5. A series of four X-ray photographs showing variations and duplications of the pollex (I.) in the manus of the pig

A, a manus in which the pollex is represented by an abnormally large digit of three phalanges;

B, the phalanges of the extra digit are duplicated:

C, all the bones of the extra digit are duplicated, but both sets of phalanges are enclosed within a single hoof;

D, two extra digits are present, articulating with a single trapezium (trz.).



fig 1 | fig 2 | fig 3 | fig 4 | fig 5 | fig 6 | fig 7

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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Reference

Prentiss CW. Extra digits and digital reductions. (1906) Popular Science Monthly. 336-448.


Cite this page: Hill, M.A. (2024, February 24) Embryology Prentiss1906 fig05.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Prentiss1906_fig05.jpg

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