RESUMO
The recent improvement in the cardiac surgery requires a continuous study of the great anatomy of the heart. In this paper, we compare the anatomic pattern of the coronary artery between normal individuals and individuals with sintomatic ischemic disease of the heart. The anatomic pattern of circulation was carried out in two different groups: group I formed by 119 anatomical specimens taken from individuals whose cause of death was non-cardiac and group II formed by 150 live individuals with sintomatic coronary disease, on pre-operative management. In the former was performed epicardiectomy and in the latter, radiologic study. In group I was found 68% of right predominance, 13% of left predominance and 19% of balanced type of circulation. In group II was found 59%, 17% and 24%, respectively. When considering the number of branches that trespass the crux cordis in group I, there was 48% with only one branch, 28% with two, 17% with three, 4% with four and 3% with five branches. Performing the same study for group II, we found 47%, 29%, 14.6%, 3.4% and 6% respectively. Both groups were compared by Chi-square test and by Fisher's Exact test and no considerable difference was pointed out.
Assuntos
Circulação Coronária , Vasos Coronários/anatomia & histologia , Adulto , Idoso , Distribuição de Qui-Quadrado , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
The arrangement of the smooth muscle and elastic and collagen fibers of the minor papilla of the human duodenum was studied on 53 duodenopancreatic specimens obtained from adults of both sexes. Methods included stereological analyses of gross anatomical specimens and thick and thin microscopic sections. The muscular and elastic fibers of the minor papilla have a unidirectional arrangement by which the contraction of its smooth muscular fibers causes opening of its orifice allowing the flow of the pancreatic juice into the duodenum. It is not a typical anatomical sphincter.