Supported (in part) by the “Conselho Nacional de Pesquisas” of Brazil and “Museu Paraense Emilio Goeldi.”
Frequency of the musculus palmaris longus studied in vivo in some Amazon Indians†
Article first published online: 6 JUN 2005
Copyright © 1967 Wiley-Liss, Inc., A Wiley Company
American Journal of Physical Anthropology
Volume 27, Issue 1, pages 11–19, July 1967
How to Cite
Machado, A. B. M. and Di Dio, L. J. A. (1967), Frequency of the musculus palmaris longus studied in vivo in some Amazon Indians. Am. J. Phys. Anthropol., 27: 11–19. doi: 10.1002/ajpa.1330270103
- Issue published online: 6 JUN 2005
- Article first published online: 6 JUN 2005
The frequency of the Musclus palmaris longus was studied by observing its tendon in vivo in 379 Amazon Indians belonging to the following tribes: Tucano, Tariana, Tiriyo, Desana, Piratapuya, Macu and Arapaso. The muscle was not observed in 14 individuals (3.7% ± 1.0) either unilaterally or bilaterally and in 24 of 758 limbs (3.1% ± 0.6). No statistically significant difference was observed in the frequency of the muscle among the different tribes. Bilateral absence was significantly more frequent than the unilateral one; absence in females was more frequent than in males.
The frequency of palmaris longus agenesis in Amazon Indians agrees with reported values for Negroids and Mongoloids and is considerably lower than that generally reported for the Caucasoids.