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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. Mammalian kidney - Wikipedia

    en.wikipedia.org/wiki/Mammalian_kidney

    The descending vasa recta, ascending vasa recta vessels, and the loop of Henle together form the countercurrent system of the kidney. In the afferent arteriole, blood is supplied at high pressure, which promotes filtration, and in the efferent arteriole, it is at low pressure, which promotes reabsorption .

  4. Descending limb of loop of Henle - Wikipedia

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

    The thick descending limb is less important than the thin descending limb, so often the terms "descending limb" and "thin descending limb" are used interchangeably. Some sources simply refer to a "thin limb". In this context, the thin ascending limb of loop of Henle would be included.

  5. Proximal tubule - Wikipedia

    en.wikipedia.org/wiki/Proximal_tubule

    The pars recta (Latin "straight part") is the following straight (descending) portion. [citation needed] [5] Straight segments descend into the outer medulla. They terminate at a remarkably uniform level and it is their line of termination that establishes the boundary between the inner and outer stripes of the outer zone of the renal medulla.

  6. Renal cortex - Wikipedia

    en.wikipedia.org/wiki/Renal_cortex

    The renal cortex is the outer portion of the kidney between the renal capsule and the renal medulla. [1] In the adult, it forms a continuous smooth outer zone with a number of projections (cortical columns) that extend down between the pyramids.

  7. 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.

  8. 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.

  9. Arcuate vein - Wikipedia

    en.wikipedia.org/wiki/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. [citation needed] Arcuate veins pass around the renal pyramids at the border between the renal cortex and renal medulla in an arch shape. [1]