Facts About the Kidneys

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The human body is a wonder of complex design, with several organs functioning nonstop to keep us healthy. The kidneys are an unsung star among these essential organs, carrying out many necessary tasks for our well-being. This article will highlight the fantastic function of the kidneys in maintaining the equilibrium of our bodies by examining amazing facts about them.

Facts About the Kidneys:

Two Bean-Shaped Organs: 

  • The kidneys are two bean-shaped organs below the rib cage on either spine. Despite their seemingly tiny size, they serve far-reaching purposes.

Powerhouse of Filtration: 

  • The kidneys filter between 120 and 150 quarts of blood daily, yielding between one and two quarts of urine. This fantastic filtration method aids in clearing the blood of surplus materials and waste items.

Renal Cortex and Medulla: 

  • The outer renal cortex and the inner renal medulla are the two primary divisions of the kidney. The renal cortex controls the filtration process, while the medulla contributes to the urine concentration.

Regulators of Blood Pressure: 

  • The kidneys are essential for controlling blood pressure. By regulating blood volume and the quantity of salt retained in the body, they can regulate blood pressure.

Renin-Angiotensin System: 

  • Renin, a hormone produced by the kidneys, is an essential component of the renin-angiotensin-aldosterone system, responsible for controlling blood pressure and fluid balance.


  • The kidneys control erythropoiesis, or the process of making red blood cells. When oxygen levels are low, they release erythropoietin, a hormone that causes the bone marrow to generate red blood cells.

Acid-Base Balance: 

  • The kidneys assist in preserving the body’s acid-base equilibrium, which keeps the blood’s pH level at its ideal level. When necessary, they reabsorb bicarbonate ions and expel hydrogen ions.

Calcium and Phosphorus Regulation: 

  • By modifying the rates at which calcium and phosphorus are absorbable in the renal tubules, the kidneys regulate blood levels of these elements.

Toxic Waste Disposal: 

  • Urea, creatinine, and uric acid are among the metabolic waste products that the kidneys are in charge of eliminating from the bloodstream.

Nephrons: The Units of Filtration: 

  • Nephrons are the kidneys’ functioning units. About a million nephrons, comprised of a renal tubule and a renal corpuscle, are found in each kidney.

Glomerular Filtration Rate (GFR): 

  • This indicator shows how well the kidneys remove waste from the bloodstream. A GFR of less than 60 may indicate kidney disease.

Diabetes and Kidney Health: 

  • One of the main risk factors for kidney disease is diabetes. Elevated blood sugar can harm the kidneys’ tiny blood capillaries, which lowers the organs’ ability to filter waste.

Hypertension and Kidney Damage: 

  • Over time, kidney damage might result from persistently high blood pressure. Blood pressure control is crucial to maintaining the health of your kidneys.

Polycystic Kidney Disease (PKD):

  • The genetic illness known as polycystic kidney disease (PKD) is typified by the development of kidney cysts. Over time, renal function may be compromised by these cysts.

Kidney Stones:

  • Solid deposits of minerals and salts that can accumulate in the kidneys are kidney stones. They can be very painful, and getting rid of them requires medical attention.

Water Balance: 

  • The kidneys assist in controlling the body’s water balance. When you’re dehydrated, they can store water for you, and when you’re done, they can eliminate extra water.


  • Dialysis becomes a lifesaver for people with severe renal failure or malfunction. It is a medical procedure that simulates the filtration and waste elimination processes of the kidney.

Kidney Transplants: 

  • For people with end-stage kidney disease, a kidney transplant can be a lifesaver. A failing kidney can be replaced with a healthy kidney from a deceased or living donor.

Awareness of Kidney Health: 

  • World Kidney Day is on the second Thursday of March, designated National Kidney Month. The purpose of these activities is to increase public awareness of kidney health issues and the value of early detection and prevention.

Sustaining Kidney Health: 

  • To prevent kidney damage, limit over-the-counter painkillers, control your blood pressure and blood sugar, hydrate well, eat a balanced diet, and avoid using your kidneys excessively.


Frequently overlooked in favour of more renowned organs, the kidneys are essential to our health. Their excellent capacities to control blood pressure, filter waste, and preserve crucial body processes are necessary to human life. It is vital to comprehend the significance of renal health and the variables that may affect it to maintain general well-being. Thus, remember to honour and offer our amazing kidneys—the unsung heroes of our bodies—the care and consideration they so richly deserve.

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