Which vessels run along the Corticomedullary Junction?
An interlobar artery extends along the boundary of each renal lobe (renal column) and then branches at right angles to form an arcuate artery that runs along the corticomedullary junction (Fig.
What is the function of the interlobar arteries veins?
Interlobular veins run alongside the interlobular arteries and collect venous blood from the capillary plexus of the cortex. As noted earlier, the venous return from the medulla runs to the arcuate veins. Arcuate veins deliver blood to the interlobar veins.
What are interlobar vessels?
The interlobar arteries are vessels of the renal circulation which supply the renal lobes. The interlobar arteries branch from the lobar arteries which branch from the segmental arteries, from the renal artery.
Where do interlobar veins unite?
The sublobular veins unite to form larger and larger trunks, and end at last in the hepatic veins, these converge to form three large trunks which open into the inferior vena cava while that vessel is situated in its fossa on the posterior surface of the liver.
What is the function of peritubular capillaries?
In the renal system, peritubular capillaries are tiny blood vessels, supplied by the efferent arteriole, that travel alongside nephrons allowing reabsorption and secretion between blood and the inner lumen of the nephron.
What are arcuate arteries?
Medical Definition of arcuate artery : any of several arteries that curve and arch: as. a : any of the branches of an interlobar artery of the kidney that form arches over the base of the pyramids At the base of the renal pyramids, the interlobar arteries branch into the arcuate arteries.—
What part of kidney is connected with arcuate artery?
The arcuate arteries of the kidney, also known as arciform arteries, are vessels of the renal circulation. They are located at the border of the renal cortex and renal medulla.
What is the Arcuate vein?
The arcuate vein is a vessel of the renal circulation. It is located at the border of the renal cortex and renal medulla.
What are two functions of the peritubular capillaries?
Essentially, the peritubular capillaries reabsorb useful substances such as glucose and amino acids and secrete certain mineral ions and excess water into the tubule. The majority of exchange through the peritubular capillaries occurs because of chemical gradients osmosis and hydrostatic pressure.
What are the mechanisms of peritubular capillary reabsorption?
As we highlighted earlier, the reabsorption of filtrate into the peritubular capillaries is accounted for by two major processes; the transport of solutes through the nephron epithelial tissue (passive or active transport mechanisms) and the uptake of solutes into the peritubular capillaries.
Where is the Arcuate vein?