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Reduction of Main Line C

Published online by Cambridge University Press:  01 August 2014

Walter Vormittag  and
Margarete Weninger
Walter Vormittag
Affiliation:
Second Department of internal Medicine and, Institute of Human Biology, Vienna
Margarete Weninger*
Affiliation:
Second Department of internal Medicine and, Institute of Human Biology, Vienna
*
Institut für Humanbiologie, Van Swietengasse 1, A-Wien 1096, or Dr. Walter Vormittag, II. Medizinische Universitätsklinik, Garniosongasse 12, A-1090 Wien, Austria

Abstract

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Fifteen hundred palmar prints of normal persons and patients suffering from various diseases were studied and classified as to dermal ridge configurations at the base of digit IV, after the exclusion of main line C courses with endings at one of the palmar marginal regions. This classification scheme, based on the three classical reduction forms of line C (O,X(8),x), resulted in the differentiation of three main groups, A, B, and C. Within these main groups, pattern types with strong similarity were combined to subgroups allowing an easier documentation. Twin and family data were used to test whether the described pattern types, besides the classical abortive states O,X and x of line C (called special and intermediate forms), are heritable and for which of them a remarkable reduction tendency could be established. The results allow us to confirm the main grouping and the assumed reduction tendency of the special forms of group A.

Keywords

DermatographicsClassificationMain Line CReduction typesTwin and family study
Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 29 , Issue 3 , July 1980 , pp. 209 - 221
Copyright
Copyright © The International Society for Twin Studies 1980

References

REFERENCES

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