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The incidence of a third head of the biceps brachii muscle has been reported in several articles, and there is a general idea that it is a race-dependent variation. The aim of this investigation was to study the biceps brachii muscle with regard to the incidence of its third head in a mixed white and black Brazilian population. A total of 200 upper arms… (More)
Morphometric measurements have been carried out on the human myenteric esophageal neurons at the ages of 20-40 and more than 70 years. The number of neurons decreases after 70 years of age, which is accompanied by an increase in the sizes of the neurons. In percentage terms the decrease in the number of neurons in the aged varied from 22 to 62% along the… (More)
The authors have studied the right and left incidence of 30 non-metric infracranial variations in 2,103 dry bones of Brazilians and have concluded that the bilateral asymmetry is not significant in all but 2 traits: "The lateral tibial squatting facet" (X2 = 7.93) and "The peroneal tubercle present" (X2 = 20.35).