Biotemas (Sep 2009)
Arterial supply of the cervical thymus lobes in swine fetuses (Sus scrofa domesticus) of the Camborough 25 lineage
Abstract
This study aims to discover more about the arterial supply of cervical lobes of the thymus, in relation to its origins, distribution and ordination in swine (Sus scrofa domesticus) of Camborough 25 lineage. Thus, 29 swine (17 males and 12 females) were studied. The arterial system of the models was colored with aqueous solution of Neoprene Latex “450” (50%) and after the models were fixed in 10% formaldehyde aqueous solution. Great individual variations in the length and size of the thymus vessel supply, and also in the layout, size and thickness of the cervical lobes of the thymus, were observed. The superficial cervical artery (96.55%), common carotid artery (54.54%) and occipital artery (55.17%) contribute to the blood supply of the cervical lobes on both sides. In addition, branches from the lingual artery (3.45%) and internal carotid artery (3.45%) on both sides, as well as the subclavian artery (6.90%) on the left side, were observed. No significant differences in vascularization of lobes in relation to antimerals or sexes were evidenced. Considering the findings, it was conclued that each animal had its own characteristics and peculiarities, thus enabling the establishment of a particular arrangement of the swine strain.