✦ LIBER ✦

Variations of the canalis hypoglossi

✍ Scribed by Lillie, Ralph D.

Publisher: John Wiley and Sons
Year: 1917
Tongue: English
Weight: 614 KB
Volume: 13
Category: Article
ISSN: 0003-276X
DOI: 10.1002/ar.1090130302

No coin nor oath required. For personal study only.

✦ Synopsis

My attention was attracted to the subject of the variations of the hypoglossal canal by the discovery of a double hypoglossal canal in the dissecting room. Subsequent examination of about thirty skulls, about twenty of them European, revealed ten cases of complete division of the canal. Consultation of the ordinary reference books failed to give definite figures. So Dr. Meyer placed the collection of skulls in the anatomical museum and Indian skulls in the general museum at my disposal.

Bartels ('04) found the hypoglossal canal doubled in 117 cases in 958 half skulls or in 12.2 per cent. In the seventeen varieties of skulls used by him the percentage varied from 0.0 per cent up to 27.9 per cent in Inca skulls. Weigner ('11) who examined 103 skulls in a study of the variations of the occipital bone found that the following percentages held for German skulls :

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