Differences among the forelimb arteries in groups of primates and a mathematical model explanation.

Background: Recently, some studies about primates have claimed the importance of the vessels to maintain the muscles working; in fact, the arterial supply could suggest how strenuous the muscular performance is associated to locomotor behavior. The aim of this work was to study the anatomy of the arteries of the forelimbs of different groups of primates to evidence a general arterial model in comparative terms.

Methods: We propose a biophysical explanation for the arterial pattern of the forelimbs of primates' groups.

Results: Three pattern of the forelimb arteries in Primates were descript and the differences were explained using mathematical formulas.

Conclusions: The anatomical study about the comparative anatomy of the arteries of the forelimbs of primates provided hypothesis about the three observed models, mainly in relation to brachial artery division and the number of the palmar arches, in mathematical models' terms.