Category: R

  • Renal rickets

    A form of rickets caused by kidneys which do not function properly. A disturbance in epiphyseal growth during childhood due to severe chronic renal insufficiency resulting in persistent acidosis. Dwarfism and failure of gonadal development result. The pognosis is poor. A type of rickets caused by the kidneys’ inability to keep a balanced ratio of…

  • Renal pelvis

    The upper and wider part of the ureter leading from the kidney where urine is collected before passing down the ureter into the bladder. The expanded proximal end of the ureter. It is within the renal sinus of the kidney and receives the urine through the major calyces.  

  • Renal medulla

    The inner part of a kidney containing no glomeruli.  

  • Renal hypertension

    High blood pressure linked to kidney disease. Elevation of blood pressure due to renal artery atherosclerosis or other kidney diseases. Hypertension produced by kidney disease. The mechanism causing an increase in blood pressure is either alteration in the renal regulation of sodium and fluids or alteration in renal secretion of vasoconstrictors, which alter the tone…

  • Renal dialysis

    A method of artificially maintaining the chemical balance of the blood when the kidneys have failed, or the process of using this method.  

  • Renal cortex

    The outer covering of the kidney, immediately beneath the capsule.  

  • Renal corpuscle

    Part of a nephron in the cortex of a kidney. A glomerulus and Bowman’s capsule of the nephron of a kidney, the site of glomerular filtration.  

  • Renal colic

    A sudden pain caused by a kidney stone or stones in the ureter. Sharp pain in the lower back radiating to the groin, usually associated with the passage of a calculus (stone) through the ureter. Sudden, severe, sharp pain originating from the area of the back over the kidney, associated with spasms, due to presence…

  • Renal clearance

    The measurement of the rate at which kidneys filter impurities from blood.  

  • Renal calculus

    A small hard mineral mass called a stone in the kidney. A calculus in the kidney that may block urine flow. If the ureter is blocked by the stone, there is sudden, severe, and paroxysmal renal colic often with chills, fever, hematuria, and frequency of urination. If stones do not pass spontaneously, they should be…