peritubular การใช้
- Erythropoietin is a sialoglycoprotein hormone produced by peritubular cells of kidney
- After entering the renal portal vein, blood enters the peritubular blood supply.
- The peritubular capillaries surround the proximal and distal tubules in both classes of nephrons.
- Fluid in the filtrate entering the proximal convoluted tubule is reabsorbed into the peritubular capillaries.
- The straight arterioles are peritubular capillaries, specifically those that surround the loop of Henle.
- Reduced blood pressure means decreased venous pressure and, hence, a decreased peritubular capillary pressure.
- Erythropoietin is produced by interstitial fibroblasts in the kidney in close association with peritubular capillary and proximal convoluted tubule.
- From there, Starling forces dictate the gradient for movement of water and Na + into the peritubular capillaries.
- Because hydrostatic pressures in the tubules, interstitium and peritubular capillaries are normally equivalent, oncotic pressures govern flow.
- This in turn implicates Sulf1 in human renal allograft rejection which is highly dependent upon HSPG function in peritubular capillaries.
- Members of the GLUT family of glucose uniporters then transport the glucose across the basolateral membrane, and into the peritubular capillaries.
- The peritubular blood supply is composed of efferent arterioles leaving the glomeruli of reptilian-type nephrons that drain into sinuses of the cortex.
- The peritubular capillaries then recombine to form an efferent venule, which combines with efferent venules from other nephrons into the renal vein, and rejoins the main bloodstream.
- Clearance is a function of glomerular filtration, secretion from the peritubular capillaries to the nephron, and re-absorption from the nephron back to the peritubular capillaries.
- Clearance is a function of glomerular filtration, secretion from the peritubular capillaries to the nephron, and re-absorption from the nephron back to the peritubular capillaries.
- Then the Na / K ATPase will pump 3 Na out into the peritubular fluid and 2 K into the cell on the non-lumen side of the cell.
- The basic functional and structural unit of the kidney is nephron, which is mainly composed of four components : the glomerulus, tubules, the collecting duct and peritubular capillaries.
- PAH is different from inulin in that the fraction of PAH that bypasses the glomerulus and enters the nephron's tubular cells ( via the peritubular capillaries ) is completely secreted.
- Typically, oncotic pressures are higher in the peritubular capillaries, because protein composition in the interstitium is nominal; therefore, Na + and water leave the interstitial space and enter the capillaries.
- For cortical nephrons, a single network of capillaries, known as the peritubular capillaries, surrounds the entire renal tubule, whereas for juxtamedullary nephrons, the peritubular capillaries surround only the Henle ).
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