UPPSC PCS - 2020

Consider the following statements about human brain : 1) The brain is responsible for regulating the heart beat. 2) It is responsible for balancing the body. Select the correct answer using the codes given below.

Year Asked: 2020

A
Only 1 is correct
B
Only 2 is correct
C
1 and 2 both are correct
D
Neither 1 nor 2 is correct

Correct Answer

C. 1 and 2 both are correct

Detailed Explanation

Both statements are correct, so the answer is C. The question is basic, but it tests whether you can match each brain region to its function.

Statement 1 is correct. The cardiac centre in the medulla oblongata regulates heart rate through the autonomic nervous system. The sympathetic branch speeds the heart up and the parasympathetic (vagus) branch slows it down. The medulla also controls breathing and blood vessel tone.

Statement 2 is correct. The cerebellum, at the back of the brain, maintains posture, equilibrium and coordinated movement. It integrates inputs from the vestibular system, the eyes and proprioceptors.

  • Option A is wrong because statement 2 is also correct.
  • Option B is wrong because statement 1 is also correct.
  • Option D is wrong because both statements hold.

Core concept: functional neuroanatomy and autonomic control. It links to the Science and Technology and Health sections, and to Mains answers on lifestyle diseases and rehabilitation after neurological injury.

Trap: aspirants often assign balance to the cerebrum or the medulla. Balance belongs to the cerebellum, while the medulla handles vital reflexes like heartbeat and breathing.

This question appeared in UPPCS 2020 GS Paper 1.

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