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

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.