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The renal circulation supplies the blood to the kidneys via the renal arteries, left and right, which branch directly from the abdominal aorta. Despite their relatively small size, the kidneys receive approximately 20% of the cardiac output. [1]
The kidneys receive blood from the renal arteries, left and right, which branch directly from the abdominal aorta. The kidneys receive approximately 20–25% of cardiac output in adult human. [ 18 ] [ 20 ] [ 21 ] Each renal artery branches into segmental arteries, dividing further into interlobar arteries , which penetrate the renal capsule and ...
Blood enters the kidney through the renal artery, [55] which in the multilobar kidney branches in the area of the renal pelvis into large interlobar arteries that pass through the renal columns. [ 10 ] [ 109 ] The interlobar arteries branch at the base of the pyramid, giving rise to arcuate arteries , from which the interlobular arteries extend ...
Before reaching the hilus of the kidney, each artery divides into four or five branches. The anterior branches (the upper, middle, lower and apical segmental arteries) lie between the renal vein and ureter, the vein being in front, the ureter behind. The posterior branches, which are fewer in number and include the posterior segmental artery ...
The glomerulus (pl.: glomeruli) is a network of small blood vessels (capillaries) known as a tuft, located at the beginning of a nephron in the kidney. Each of the two kidneys contains about one million nephrons. The tuft is structurally supported by the mesangium (the space between the blood vessels), composed of intraglomerular mesangial cells.
Terminations of the vasa recta form the straight venules, branches from the plexuses at the apices of the medullary pyramids. They run outward in a straight course between the tubes of the medullary substance and join the interlobular veins to form venous arcades. These in turn unite and form veins which pass along the sides of the renal pyramids.
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The renal medulla (Latin: medulla renis 'marrow of the kidney') is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the segmental arteries which then branch to form interlobar arteries.