Medicine

Difference Between Cerebrum and Cerebellum

Main difference

The brain is a vital organ of our body. It is said to be the control unit of the entire body. The brain has different parts which include the cerebrum and the cerebellum. The cerebrum is the main and largest part of our brain. It comes in the forebrain. It is situated anteriorly in the cranial cavity of the skull. It consists of two hemispheres known as the left cerebral hemisphere and the right cerebral hemisphere. It deals with complex sensory and neural functions. It also controls and initiates the voluntary activities of the body and coordinates them with each other, while the cerebellum is the part of the brain located posteriorly and inferiorly. It comes in the hindbrain and is present at the back of the skull in the cranial cavity. Its function is to initiate and regulate the muscular activity of our organism.

Comparison chart

Brain Cerebellum
Part of The cerebrum is the part of the forebrain. The cerebellum is the part of the hindbrain.
Center The brain is the center of the brain. The cerebellum is the center of the hindbrain.
Size The cerebrum is larger and produces most of the brain’s volume. The cerebellum is smaller and produces only 10% of the total volume of the brain.
lobes The brain has four main lobes. The cerebellum has three lobes.
neurons Although the cerebrum is larger, it has fewer neurons than the cerebellum. The cerebellum contains 50% of all neurons in the total brain.
Function The brain controls voluntary functions, speech, etc. The cerebellum participates in balanced and coordinated voluntary movements.
What is Brain?

The cerebrum is the largest, main and most prominent part of our brain and is situated anteriorly in the cranial cavity of the skull. The cerebrum is the central part of the forebrain and its weight is 4/5 thof the total weight of the brain. The cerebrum is divided into two hemispheres by sulcus. It has many grooves and convolutions. These two cerebral hemispheres are interconnected through a structure called the corpus callosum. Each cerebral hemisphere is divided into four lobes; frontal lobe, parietal lobe, temporal lobe, and occipital lobe. These lobes have different functions; they have areas that are related to specific functions. The frontal lobe performs functions such as speech, movement, emotions, and planning; the parietal lobe is associated with some movement and perception; The occipital lobe is responsible for all vision processes and the temporal lobe deals with hearing, memory, and speech. The cerebrum is believed to be much older than all other parts of the brain.

What is the cerebellum?

The cerebellum is a hub for the hindbrain, it is smaller than the cerebrum but is the second largest part of the brain and is situated above the posterior cranial fossa of the skull. It is also called the little brain of the body. It has 10% of the volume of the brain but has 50% of the neurons in the entire brain. It is further divided into these lobes; Central lobe or vermis and Two lateral lobes or cerebellar hemisphere. The cerebellum has two main functions, one to maintain a proper posture of a body in every state, and another is to maintain balance when standing or walking, etc.

Cerebrum vs cerebellum
  • The cerebrum is the forebrain part while the cerebellum is the hindbrain part.
  • The cerebrum is the center of the brain, while the cerebellum is the center of the hindbrain.
  • The cerebrum is larger and produces most of the brain volume, while the cerebellum is smaller and produces only 10% of the total brain volume.
  • The cerebrum has four main lobes, while the cerebellum has three lobes.
  • Although the cerebrum is larger, but has fewer neurons than the cerebellum, the cerebellum contains 50% of all neurons in the total brain.
  • The cerebrum controls voluntary functions, speech, on the other hand, the cerebellum is involved in coordinated voluntary movements and balance.

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