Hypothenar radial arch in man

Hypothenar radial arch was found in 2.07% of the males and 2.82% of females in a sample of 2,130 Bulgarians. Persons bearing the pattern on the right hand display the highest frequency, followed by those bearing the pattern bilaterally and those with it on the left hand. A well‐expressed tendency of the hypothenar radial arch towards symmetrical occurrence was disclosed through the ratio between the actual and expected frequency of its bilateral occurrence. This ratio is recommended as an efficient estimator of tendency toward symmetry. The presence of the pattern is associated with morphological peculiarities of the other dermatoglyphic features of the palm. Line A ends at two parts of the palm periphery which are extremes of its usual distribution. Line D is shortened and the ridges run more vertically than in palms without the pattern. The connection of the hypothenar radial arch with the border ulnar triradius, along with the observations on the opposite hypothenars in the unilateral cases, provides a support of Wilder's conception concerning the mode of formation of the pattern. A genealogical tree exhibiting transmission of the pattern over three consecutive generations is presented. A pattern of dominant inheritance with a fairly reduced penetrance is compatible with the genealogical data

Arch · Bilateral symmetry · Biology · Geometry · Inheritance (genetic algorithm) · Palm · Penetrance · Physics · Symmetry (geometry) · Anatomy · Congenital limb and hand anomalies · Dermatoglyphics and Human Traits · Forensic and Genetic Research · History · Mathematics

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  Emanuele Sanna, Elena Usai et al.•Anthropologischer Anzeiger•2004

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  Open Access•E Sanna, E Usai et al.•International Journal of…•1998

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  Open Access•Bibha Karmakar, E Kobyliansky•Papers on Anthropology•2012

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  Open Access•Roger L H Dennis, Eric Sunderland et al.•Annals of Human Biology•1978

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  Open Access•R C Renes•American Journal of Physical…•1946

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  Open Access•Harold Cummins, Harriet Hopkins Keith et al.•American Journal of Physical…•1929

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  Open Access•Sarah B Holt•American Journal of Physical…•1975

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• General rules in the symmetrical occurrence of papillary patterns

  Open Access•J Dankmeijer, E C Renes•American Journal of Physical…•1938

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• Digital dermatoglyphics of Bulgarians from northeast Bulgaria

  Open Access•George B Karev•American Journal of Physical…•1986

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