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16 de jul. de 2023 · Loop of Henle. Ion transport along the nephron is essential for the reabsorption of sodium and water, maintenance of plasma volume, blood pressure and production of urine. The Loop of Henle contributes to the absorption of approximately 25% of filtered sodium and can be targeted by diuretic therapy.
loop of Henle, long U-shaped portion of the tubule that conducts urine within each nephron of the kidney of reptiles, birds, and mammals. The principal function of the loop of Henle is in the recovery of water and sodium chloride from urine.
- The Editors of Encyclopaedia Britannica
The loop of Henle can be divided into four parts: The thin descending limb has low permeability to ions and urea while being highly permeable to water. The loop has a sharp bend in the renal medulla going from descending to ascending thin limb. The thin ascending limb is impermeable to water, but it is permeable to ions.
The peritubular capillaries run alongside the nephron, and the capillaries that run along the loop of henle are called vasa recta. Solutes and water that are reabsorbed into the interstitium go into the vasa recta and re-enter circulation.
9 de jun. de 2022 · Go to: Abstract. Saving body water by optimal reabsorption of water filtered by the kidney leading to excretion of urine with concentrations of solutes largely above that of plasma allowed vertebrate species to leave the aquatic environment to live on solid ground.
- 10.1007/s00424-022-02712-9
- 2022
- Pflugers Arch. 2022; 474(8): 841-852.
30 de oct. de 2023 · The nephron is the main functional unit of the kidney, in charge of removing metabolic waste and excess water from the blood. In this article we will explore the microanatomy of a nephron and learn how their function relates to their histological features.
Transport of potassium in Henle's loop is complex. Potassium is concentrated in the fluid passing through the descending limb to such an extent that the concentration in the fluid at the papilla is ∼10 times greater than that in plasma ( Diezi et al., 1976 ).
