Question

The rate of heart beat is regulated by the integrated activity of inhibiting and accelerating effects occurring in which part of the brain?

• A. Cerebellum
• B. Diencephalon
• C. Medulla oblongata
• D. Pons Varolii

Answer 1

The correct option is C Medulla oblongata

A. Cerebellum: It maintains posture, equilibrium and muscle tone.

B. Diencephalon: It is a reflex centre for muscular and glandular activities. It is relay centre for sensory impulses, except those of smell.

C. Medulla oblongata: It maintains posture, equilibrium and muscle tone. It controls voluntary movements initiated by the cerebrum.

D. Pons Varolii: It transmits impulses from one side of the cerebellum to the other and from medulla to higher centres in the brain.

So, the correct answer is 'Medulla oblongata'.