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Doctors Medicines MCQs Q&A

Consider the statements about the Excretory system:   A) Right kidney is situated slightly above than the left kidney B) Adrenal glands are situated inside the kidneys Choose the correct statement.

Consider the statements about the Excretory system:   A) Right kidney is situated slightly above than the left kidney B) Adrenal glands are situated inside the kidneys Choose the correct statement. Correct Answer Neither A nor B

The Correct answer is Neither A nor B.
Key Points
Kidney-
  • Kidneys are the Bean-shaped organs situated on the backside of the abdomen and on each side of the vertebral column.
  • Generally kidney measures;
    • length- 10 to 12 cm;
    • Height- 5 to 7 cm 
    • width- 2 to 3 cm.
  • Kidneys are Retroperitoneal, so covered by peritoneum only from the front side (ventral side).
  • The level of the kidney is from the 12th thoracic vertebra up to the 3rd Lumbar vertebra.
  • Weight of each kidney
    • Male- 125 to 170 gram
    • Female- 115 to 155 grams
  • Each kidney is convex from outside, while on inside there is a small depression known as hilum.
  • Ureter comes out from this hilum.
    • The kidney of the frog does not have a hilum.
  • The right kidney is situated slightly lower level than the left kidney.
  • The outer layer of the kidney is called the Cortex.
  • Inner to that there are 18 pyramid-shaped constituents, combined known as Medulla.
  • Length of the ureter is 40 cm.
  • A nephron is the structural and functional unit of the kidney.

  • All of the Urine formed in the kidney is actually formed in nephrons.

Important Points

Adrenal Gland-
  • This gland secretes a particular hormone that keeps the level of salts in the blood under control.
  • It is situated on the kidneys.
  • It secretes the Adrenaline hormone.
  • This hormone helps during situations like anger, fear, stress.

 

Related Questions

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