Difference Between Left and Right Kidney

Kidneys are a vital organ in a human body as it filters the blood and removes impurities from it. Moreover, it helps in eliminating wastes along with maintaining fluid balance in human body. Also, these renal organs help in balancing an electrolyte level.
These pair of organs are of a bean shape, and they are present on both sides of the spine. However, there is a visible contrast in both kidneys.
Let’s learn about left vs right kidney in detail!
Some of the below mentioned points show what left vs right kidney implies. Read them to learn about them in detail.

Left and Right Kidney Difference

Left Kidney Right Kidney 
The left side of a renal organ occupies a slightly higher position. The right side of the kidney occupies a comparatively lower place as the position of the liver creates asymmetry.
The left renal artery allows the blood to flow. The right renal artery enables blood to flow.
The left renal organ is comparatively larger in dimensions. The right kidney size is less than the left one.
It exists on the left side of a human frame under rib 11 and 12. It exists on the right side of a body in relation with rib 12 only.
The renal volume of the left kidney is approx. 146 cm3. The volume of a right renal organ is approximately 134cm3.

Multiple Choice Questions

We have arranged a set of solved questions on the left vs right kidney. Give it a read to gain an insight into the subject and master in your studies!

  • The capability of Kidneys to excrete urine in concentration increases if ________
  1. The flow of blood via medulla reduces.
  2. The flow increases via Henle’s loop.
  3. Reduction in an amount of sodium and potassium via loop.
  4. The rate at which blood travels from medulla rises.
  5. None of these.

Answer: a.

  • An increase in amount of re-absorption of sodium within distal tubes results in the rise of __________.
  1. Blood flow.
  2. Sugar level.
  3. Secretion of aldosterone.
  4. None of these.

Answer: c.

  • Which of the following renal site is responsible for secreting organic ions?
  1. Proximal tube.
  2. Henle’s loop.
  3. Nephrons.
  4. None of them.

Answer: a.

  • An increase in a rate of glomerular filtration occurs due to _________.
  1. A decrease in plasma protein concentration.
  2. Increase in renal blood movement.
  3. Reduction in flow of renal blood.
  4. None of the above.

Answer: a.

Do It Yourself

Here are a few questions regarding the left vs right kidney and its functioning in a human frame. Try to solve them to gain a better insight on the topic!

  • Which of these gets used for identifying renal stones in Kidneys?
  1. Ultrasound.
  2. CT scan.
  3. Dialysis.
  4. MRI scan.
  5. None of these.
  • Which of this one does not have a relation with Kidney Disease?
  1. Down’s syndrome.
  2. Anaemia.
  3. Cardiac arrest.
  4. None of them.


FAQ (Frequently Asked Questions)

  1. What are the dimensions of both the Kidneys?

Ans. The left kidney is bigger in dimension than the right one. The left side has a renal length of around 11.2 cm in size, whereas the right-side measures 10.9 cm. Moreover, the left renal volume appears approximately 146 cm3 in shape, whereas the right one measures around 134cm3.

  1. How do Kidneys change in size with age?

Ans. Both kidneys are unequal in shape and dimensions. However, the size of kidneys grows continually since birth, and it reaches a particular shape at an adult age. The renal organs on an average maintain a length of 10 to 13 cm range.

  1. Which Kidney is higher positioned in a human body?

Ans. The left side of the renal organ is placed at a slightly higher position that right one. It occurs because a larger portion of the liver is present on the right side of a human frame.

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