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Question

Blood bank in human body is


A

Spleen

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B

Lungs

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C

Heart

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D

Liver

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Solution

The correct option is A

Spleen


The correct option is A:
Explanation of correct option-

  1. Spleen is located behind the stomach and below the lungs.
  2. It stores blood and helps in fighting serious infections.
  3. It is part of the lymphatic system.

Explanation of incorrect option-

Option B-

  1. The lungs are the respiratory organ.
  2. Gaseous exchange (Oxygen and Carbon-dioxide) takes place in the lungs.

Option C-

  1. The heart is the pumping organ of the body. It collects the deoxygenated blood from the body through the vena cava and pumps it to the lungs where the blood gets oxygenated and reversed back to the heart via pulmonary veins.
  2. The oxygenated blood is then directed toward the body via arteries.

Option D-

  1. The liver is the largest gland of the body.
  2. It secretes bile juice which plays an important role in digestion.
  3. It also produces RBCs.
  4. It stores glucose in the form of glycogen.

Final answer: Blood bank in human body is Spleen


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