Santo Neto H, Camilli J A, Andrade J C, Meciano Filho J, Marques M J
Department of Anatomy, Campinas State University, UNICAMP, Sao Paulo, Brazil.
Ann Anat. 1998 Feb;180(1):69-71. doi: 10.1016/s0940-9602(98)80137-4.
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 from adult white and black cadavers (100 whites and 100 blacks) fixed in a 10% formol solution were examined and compared. It was observed that for white subjects the incidence of the third head was 20% against 9% for the black subjects: a statistically significant difference. We suggest that other factors, in addition to racial ones, might play a part in determining the incidence of the biceps brachii third head in a population.
几篇文章中都报道了肱二头肌第三头肌的发生率，普遍认为这是一种与种族有关的变异。本研究的目的是在巴西白人和黑人混合人群中，研究肱二头肌第三头肌的发生率。检查并比较了用10%甲醛溶液固定的200只来自成年白人和黑人尸体（100名白人，100名黑人）的上臂。观察到，白人受试者中第三头肌的发生率为20%，而黑人受试者为9%：这是一个具有统计学意义的差异。我们认为，除种族因素外，其他因素可能在决定人群中肱二头肌第三头肌的发生率方面起作用。
