connected to connected to Homo sapiens Homo sapiens renal vein renal efferent arteriole vasa recta https://upload.wikimedia.org/wikipedia/commons/2/21/Kidney_nephron.png vasa recta of kidney vasa recta renis straight arterioles of kidney arteria recta set of straight arterioles of kidney TODO - is this a vein or set of veins? in MA it is a venous blood vessel kidney vasa recta In the blood supply of the kidney, the vasa recta renis (or straight arteries of kidney, or straight arterioles of kidney) form a series of straight capillaries in the medulla. They lie parallel to the loop of Henle. These vessels branch off the efferent arterioles of juxtamedullary nephrons (those nephrons closest to the medulla), enter the medulla, and surround the loop of Henle. arteriolae rectae renis galen:ArteriaeRectae arteriolae recti renal medullary capillary vasa rectae EMAPA:30043 arteriolae rectae renis FMA:72006 Wikipedia:Vasa_recta MA:0002595 uberon arteriae rectae UBERON:0004726