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  2. Renal calyx - Wikipedia

    en.wikipedia.org/wiki/Renal_calyx

    The renal calyces (sg. calyx) are conduits in the kidney through which urine passes. The minor calyces form a cup-shaped drain around the apex of the renal pyramids.Urine formed in the kidney passes through a renal papilla at the apex into the minor calyx; four or five minor calyces converge to form a major calyx through which urine passes into the renal pelvis (which in turn drains urine out ...

  3. Mammalian kidney - Wikipedia

    en.wikipedia.org/wiki/Mammalian_kidney

    The kidneys of marine mammals can have hundreds [16] or thousands [49] of reniculi, each with its own cortex, medulla, and calyx. [16] For example, each whale kidney consist of about 7000 renculi which join a common collective system. [49] Although the kidneys of manatees are actually multilobar because their cortex is continuous rather than ...

  4. Kidney - Wikipedia

    en.wikipedia.org/wiki/Kidney

    Examples of substances secreted are hydrogen, ammonium, potassium and uric acid. The nephron is the structural and functional unit of the kidney. Each adult human kidney contains around 1 million nephrons, while a mouse kidney contains only about 12,500 nephrons. The kidneys also carry out functions independent of the nephrons.

  5. Collecting duct system - Wikipedia

    en.wikipedia.org/wiki/Collecting_duct_system

    The collecting duct system of the kidney consists of a series of tubules and ducts that physically connect nephrons to a minor calyx or directly to the renal pelvis.The collecting duct participates in electrolyte and fluid balance through reabsorption and excretion, processes regulated by the hormones aldosterone and vasopressin (antidiuretic hormone).

  6. Renal physiology - Wikipedia

    en.wikipedia.org/wiki/Renal_physiology

    This illustration demonstrates the normal kidney physiology, including the Proximal Convoluted Tubule (PCT), Loop of Henle, and Distal Convoluted Tubule (DCT). It also includes illustrations showing where some types of diuretics act, and what they do. Renal physiology (Latin renes, "kidneys") is the study of the physiology of the kidney.

  7. Urinary system - Wikipedia

    en.wikipedia.org/wiki/Urinary_system

    This is an accepted version of this page This is the latest accepted revision, reviewed on 13 November 2024. This article is about the human urinary system. For urinary systems of other vertebrates, see Urinary systems of birds, urinary systems of reptiles, and urinary systems of amphibians. Anatomical system consisting of the kidneys, ureters, urinary bladder, and the urethra Urinary system 1 ...

  8. Renal circulation - Wikipedia

    en.wikipedia.org/wiki/Renal_circulation

    Despite their relatively small size, the kidneys receive approximately 20% of the cardiac output. [ 1 ] Each renal artery branches into segmental arteries, dividing further into interlobar arteries , which penetrate the renal capsule and extend through the renal columns between the renal pyramids.

  9. Renal vein - Wikipedia

    en.wikipedia.org/wiki/Renal_vein

    One renal vein drains each kidney. [citation needed] A renal vein is situated anterior to its corresponding accompanying renal artery.The renal veins empty into the inferior vena cava, entering it at nearly a 90° angle.