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The average blood flow through kidneys per minute is
1. 1000 cc
2. 1200 cc
3. 200 cc
4. 500 cc

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Correct Answer - Option 2 : 1200 cc

The correct answer is 1200 cc.

  • The average blood flow through kidneys per minute is 1200 cc.
  • Blood:
    • Blood is composed of:
      • Plasma  – the fluid part of the blood and is composed of  90% of water.
      • Red blood cells, white blood cells, and platelets constitute the solid part of blood.
    • Blood is the body’s fluid connective tissue, and it forms a vital part of the human circulatory system.
    • Its main function is to circulate nutrients, hormones, minerals, and other essential components to different parts of the body.
    • Blood flows through a specified set of pathways called blood vessels.
    • The organ which is involved in pumping blood to different body parts is the heart.
    • Blood cells, blood plasma, proteins, and other mineral components (such as sodium, potassium, and calcium) constitute human blood.

  • Kidneys:
    • The kidney is an organ that maintains water balance and expels metabolic wastes.
    • Primitive and embryonic kidneys consist of two series of specialized tubules that empty into two collecting ducts, the Wolffian ducts (see Wolffian duct).
    • The more advanced kidney (metanephros) of adult reptiles, birds, and mammals is a paired compact organ whose functional units, called nephrons, filter initial urine from the blood, reabsorb water and nutrients, and secrete wastes, producing the final urine, which is expelled.
    • Reptilian and avian kidneys are made up of many tiny lobules that, in birds, are combined into three or more lobes.
    • Collecting tubules from each lobule empty into a separate branch of the ureter.
    • Reptiles have relatively few nephrons (from 3,000 to 30,000 in lizards), while birds have a great number (around 200,000 in a fowl, twice as many as in a mammal of comparable size).

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