Question

Which of the following statements are correct regarding cerebellum of the brain?
A. It is concerned with the maintenance of posture/equilibrium.
B. It is responsible for olfactory functions
C. It controls optic functions
D. Both a and c

Answer 1

Hint: Our brain is part of the central nervous system and acts as a command and control system. It is divided into 3 parts:- Forebrain (which inturn as cerebrum thalamus and hypothalamus), the midbrain and the hindbrain(which inturn consist of pons, cerebellum and medulla oblongata).In order to provide additional surface to more neurons, cerebellum has convoluted surface.

Complete Step by Step Answer:
Cerebellum plays an important role in motor control. It is located at the back of the brain, below the occipital and temporal lobes of the cerebral cortex. It is the largest part of the hindbrain. It has a cortex which covers the white matter. The cerebellum is divided into two hemispheres.

The two main parts of the cerebellum are cerebellar cortex and cerebellar nuclei. Information from other regions of the brain and nervous system reaches the cerebellum. Cerebellum performs many functions such as coordination, maintaining body posture, movement, motor learning vision and optic functions. The olfactory functions are under the regulation of cerebrum. The parietal lobe of cerebrum controls the sense of touch, smell and pain. The parietal lobe is associated with the stimulus due to auditory and visual activities.

Thus the correct answer is option D:- Both a and c.

Note: Moment is a very complex process as it involves many muscles to work together. Cerebellum plays no role in initiating the movement but it ensures that the body produces a fluid and coordinated movement. Movements like eye movement and movement associated with speech are also under the regulation of cerebellum.