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  2. Vasa recta (kidney) - Wikipedia

    en.wikipedia.org/wiki/Vasa_recta_(kidney)

    The vasa recta of the kidney, (vasa recta renis) are the straight arterioles, and the straight venules of the kidney, – a series of blood vessels in the blood supply of the kidney that enter the medulla as the straight arterioles, and leave the medulla to ascend to the cortex as the straight venules.

  3. Loop of Henle - Wikipedia

    en.wikipedia.org/wiki/Loop_of_Henle

    The loop of Henle is supplied by blood in a series of straight capillaries descending from the cortical efferent arterioles. These capillaries (called the vasa recta; recta is from the Latin for "straight") also have a countercurrent multiplier mechanism that prevents washout of solutes from the medulla, thereby maintaining the medullary ...

  4. Glomerulus (kidney) - Wikipedia

    en.wikipedia.org/wiki/Glomerulus_(kidney)

    The blood exiting the efferent arterioles of these nephrons enter the vasa recta, which are straight capillary branches that deliver blood to the renal medulla. These vasa recta run adjacent to the descending and ascending loop of Henle and participate in the maintenance of the medullary countercurrent exchange system.

  5. Descending limb of loop of Henle - Wikipedia

    en.wikipedia.org/wiki/Descending_limb_of_loop_of...

    The epithelium of the Thick segment is low simple cuboidal epithelium. The epithelium of the Thin segment is simple squamous. [4]They can be distinguished from the vasa recta by the absence of blood, and they can be distinguished from the thick ascending limb by the thickness of the epithelium.

  6. Ascending limb of loop of Henle - Wikipedia

    en.wikipedia.org/wiki/Ascending_limb_of_loop_of...

    The ascending limb of the loop of Henle is a direct continuation from the descending limb of loop of Henle, and one of the structures in the nephron of the kidney. The ascending limb has a thin and a thick segment.

  7. Peritubular capillaries - Wikipedia

    en.wikipedia.org/wiki/Peritubular_capillaries

    Peritubular capillaries surround the cortical parts of the proximal and distal tubules, while the vasa recta go into the medulla to approach the loop of Henle. [1] [2] About one-fifth of the blood plasma is filtered into Bowman's capsule as the blood passes through the glomerular capillaries; four-fifths continues into the peritubular capillaries.

  8. Macula densa - Wikipedia

    en.wikipedia.org/wiki/Macula_densa

    In the kidney, the macula densa is an area of closely packed specialized cells lining the wall of the distal tubule where it touches the glomerulus.Specifically, the macula densa is found in the terminal portion of the distal straight tubule (thick ascending limb of the loop of Henle), after which the distal convoluted tubule begins.

  9. Vasa recta (intestines) - Wikipedia

    en.wikipedia.org/wiki/Vasa_recta_(intestines)

    Vasa recta are straight arteries arising from arterial arcades (anastomoses of the jejunal and ileal arteries, branches of superior mesenteric artery) in the mesentery of the jejunum and ileum that supply the jejunum and ileum. [1] The vasa recta of the jejunum are long and few, compared to the ileum where they are numerous and short.