Sobre a origem e o número dos ramos arteriais destinados ao timo, em fetos de equinos S.R.D.

Utilizando-se 30 fetos de equinos S.R.D., foram estudados a origem e o número dos ramos arteriais destinados ao timo, tendo-se verificado a participação das artérias torácicas internas direita e esquerda, carótida comum direita, pericárdica, subclávia esquerda, tronco braquiocefálico, torácica externa direita e cervicais superficiais direita e esquerda. Alcançam o timo de um a seis ramos arteriais, mais frequentemente um e dois.It was studied the origin and number of arterial branches that reach the thymus in 30 crossbreed male and female equine foetus. The branches that supply the thymus come from the following arteries: left and right internal thoracics, conmum right carotid, pericardic, left subclavian, brachiocephalic trunk, right external thoracic and left and right superficial cervicals. In spite of its source, one to six arterial branches reach the thymus and, more frequently, one and two branches

Skeletopie of the arterial branches reach the Pars toracica of thymus, in crossbred equine foetus.

Thirty crossbred equine foetus, with ages varying from four to ten months of intrauterine life, were utilized to studies about the skeletopie of thearterial branches, which are directioned to Pars toracica of the thymus. In this material was evident that various arterial branches to the thymus lie more frequently at level of the first and second intercostal space, however this vessels can stay at level of third intercostal space, and before of first rib.Considerando-se a questão do desenvolvimento e da regressão do timo nos primeiros períodos da vida animal e, objetivando encontrar dados dos aspectos vasculares que envolvem aqueles eventos, promoveu-se o estudo da esqueletopia dos ramos arteriais que se orientam para a Pars toracica do órgão. Foram utilizados30 fetos de eqüinos S.R.D., cuja idade variava de 4 a10 meses, tornando-se evidente que os diferentes ramos arteriais de interesse encontram-se, mais :frequentemente, ao nível do 1º e do 2º espaços intercostais, podendo encontrar-se ao nível do 3º deles ou, mesmo, antes da 1º costela

Sobre a origem e o número dos ramos arteriais destinados ao timo, em fetos de equinos S.R.D.

Utilizando-se 30 fetos de equinos S.R.D., foram estudados a origem e o número dos ramos arteriais destinados ao timo, tendo-se verificado a participação das artérias torácicas internas direita e esquerda, carótida comum direita, pericárdica, subclávia esquerda, tronco braquiocefálico, torácica externa direita e cervicais superficiais direita e esquerda. Alcançam o timo de um a seis ramos arteriais, mais frequentemente um e dois.It was studied the origin and number of arterial branches that reach the thymus in 30 crossbreed male and female equine foetus. The branches that supply the thymus come from the following arteries: left and right internal thoracics, conmum right carotid, pericardic, left subclavian, brachiocephalic trunk, right external thoracic and left and right superficial cervicals. In spite of its source, one to six arterial branches reach the thymus and, more frequently, one and two branches

Biometrical aspects of the capybara’s (Hydrochoerus hydrochaeris) body and intestines with emphasis on cecal development

The rodent capybara (Hydrochoerus hydrochaeris) has become a new protein source for the population, but it needs studies regarding its anatomy, mainly on its digestive physiology, since this aspect has a direct influence on improvements to species production. Studies have shown that the caecum is the largest of intestinal organs in this rodent and it presents the greatest capacity in relation to the other animals. For the purpose of the current study, 15 animals were divided into two groups: G1, consisting of 4 animals less than 12 months of age, and G2 consisting of 11 animals over 12 months of age. The following biometrical parameters were obtained: body weight, crown-rump length, thoracic perimeter, lengths of the small intestine, large intestine and caecum, volume of the caecum and the average weight of the eyes’ bulb lenses that determined the age of the animals. The measures of the capybara’s caecum were correlated with different morphologic and biometric aspects of this animal in different phases of growth, from birth to the adult stage. Most parameters revealed an increase when comparing the group of young animals with the adults ones, with the exception of the caecum volume that only presented significant growth within the first group. Positive correlation was only identified between the parameters for weight and CCR. It was verified that body growth persists after puberty, with the intestinal development occurring at low intensity in comparison with the young animals