Renal Artery Stenosis. Renal artery stenosis (RAS) is the narrowing of one or both arteries that carry blood to the two kidneys. “Renal” means “kidney” and “stenosis” means “narrowing.” RAS can cause high blood pressure and reduce kidney function.RAS is often overlooked as a cause of high blood pressure.he arteries that carry blood to the kidneys—called the renal arteries—branch off directly from the abdominal aorta, the main vessel from the heart that supplies blood to most of the body’s organs. Healthy kidneys filter out wastes and extra fluid from the blood that passes through them.
http://www.kidneyurology.org/Library/Kidney_Health/Renal_Arter_%20Stenosis.php
The renal vein would have the cleanest blood because the kidney would have filtered out the poisons so the blood is clean.Arterial blood has foreign substances in it. The renal artery takes blood to the kidney. The renal vein takes blood away from the kidney. In the kidney, the waste product urea is filtered out of the blood.   So … the main difference is in the amount of urea in the blood: high in the renal artery and low in the renal vein. 13 people found this useful.
http://www.answers.com/Q/Which_blood_vessel-_renal_artery_or_renal_vein-_would_have_the_cleanest_blood_why
Split and merge into it. Answer by Pegalita. Confidence votes 11.9K. The renal vein would have the cleanest blood because the kidney would have filtered out the poisons so the blood is clean. Arterial blood has foreign substances in it. The renal artery takes blood to the kidney. The renal vein takes blood away from the kidney. In the kidney, the waste product urea is filtered out of the blood.   So … the main difference is in the amount of urea in the blood: high in the renal artery and low in the renal vein. 13 people found this useful.
http://www.answers.com/Q/Which_blood_vessel-_renal_artery_or_renal_vein-_would_have_the_cleanest_blood_why
Renal artery. There are two blood vessels leading off from the abdominal aorta that go to the kidneys. The renal artery is one of these two blood vessels.The renal artery enters through the hilum, which is located where the kidney curves inward in a concave shape.enal artery. There are two blood vessels leading off from the abdominal aorta that go to the kidneys. The renal artery is one of these two blood vessels.
http://www.healthline.com/human-body-maps/renal-artery
The renal vein would have the cleanest blood because the kidney would have filtered out the poisons so the blood is clean. Arterial blood has foreign substances in it.n the kidney, the waste product urea is filtered out of the blood.   So … the main difference is in the amount of urea in the blood: high in the renal artery and low in the renal vein.
http://www.answers.com/Q/Which_blood_vessel_the_renal_artery_or_renal_vein_have_the_cleanest_blood
  The renal artery takes blood to the kidney. The renal vein takes blood away from the kidney. In the kidney, the waste product urea is filtered out of the blood.   So … the main difference is in the amount of urea in the blood: high in the renal artery and low in the renal vein.13 people found this useful.n the kidney, the waste product urea is filtered out of the blood.   So … the main difference is in the amount of urea in the blood: high in the renal artery and low in the renal vein.
http://www.answers.com/Q/Which_blood_vessel_the_renal_artery_or_renal_vein_have_the_cleanest_blood
Arteries (from Greek ἀρτηρία (artēria) , meaning windpipe, artery) are blood vessels that carry blood away from the heart. While most arteries carry oxygenated blood, there are two exceptions to this, the pulmonary and the umbilical arteries.rteries (from Greek ἀρτηρία (artēria) , meaning windpipe, artery) are blood vessels that carry blood away from the heart. While most arteries carry oxygenated blood, there are two exceptions to this, the pulmonary and the umbilical arteries.
https://en.wikipedia.org/wiki/Artery
The most common conditions likely to cause renal artery blockages include: 1  Arteriosclerosis with cholesterol and plaque build-up, similar to that seen in the coronary arteries of the heart, the carotid arteries to the brain, and the leg vessels.2  The most common age at diagnosis is 55 years.he most common conditions likely to cause renal artery blockages include: 1  Arteriosclerosis with cholesterol and plaque build-up, similar to that seen in the coronary arteries of the heart, the carotid arteries to the brain, and the leg vessels.
http://surgery.med.umich.edu/vascular/patient/disease-specific/renal_artery_disease_adult.shtml
Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues.apillaries, the smallest and most numerous of the blood vessels, form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins). The primary function of capillaries is the exchange of materials between the blood and tissue cells.
http://training.seer.cancer.gov/anatomy/cardiovascular/blood/classification.html
The arterial supply of the kidneys is variable and there may be one or more renal arteries supplying each kidney. It is located above the renal vein. Supernumerary renal arteries (two or more arteries to a single kidney) are the most common renovascular anomaly, occurrence ranging from 25% to 40% of kidneys.rom Wikipedia, the free encyclopedia. The renal arteries normally arise off the side of the abdominal aorta, immediately below the superior mesenteric artery, and supply the kidneys with blood. Each is directed across the crus of the diaphragm, so as to form nearly a right angle with the aorta.
https://en.wikipedia.org/wiki/Renal_artery
what vein or artery of the kidney would have the cleanest blood
Renal vein of the kidney would have the cleanest blood.