Which one of the following organs will not feel any pain on being pricked by a needle?

This question was previously asked in
UPPSC Civil Service 2017 Official Paper 1
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  1. Skin
  2. Brain
  3. Heart
  4. Eye

Answer (Detailed Solution Below)

Option 2 : Brain
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Detailed Solution

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The correct answer is Brain.

Key Points

  • Brain organs will not feel any pain on being pricked by a needle. 
  • The brain is a painless organ.
    • So pricking or even removing a part of the brain, while a person is conscious, does not cause any pain.
  • Operating brain in a conscious state is a common procedure which is known as “awake craniotomy”.
    •  A cover around the brain is a painful structure. Pricking it can cause severe pain.
  • There are no pain nor tactile (touch) receptors of any type in the brain itself.
    • So, a needle or even more invasive brain surgery is not associated with any “sensation” of the brain being touched in the patient.
  • Hence, option 2 is correct.
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