Difference Between Cerebrum and Cerebellum

Biology · Neural Control and Coordination · NEET

The cerebrum is the largest part of the brain and sits in the forebrain. It controls thinking, memory, movement, and the senses. The cerebellum is much smaller and sits in the hindbrain. It controls posture and balance. Easy hook: cere-BRUM = BRAIN work (thinking), cere-BELL-um = keeps you level like a spirit BALANCE.

At a glance

Brain regionForebrainHindbrain
SizeLargest part of the brainMuch smaller than cerebrum
Main functionThinking, memory, intelligence, voluntary movement, sensory processingPosture, balance and smooth coordination of movement
Special featureTwo hemispheres joined by corpus callosum; outer cerebral cortex (grey matter)Folded surface gives extra space for neurons
Starts movement?Yes, commands voluntary movementNo, only fine-tunes and balances it
Cerebrum vs Cerebellum in the Human BrainCEREBRUMForebrain, largestThinking, memoryCEREBELLUMHindbrain, balanceQuick KeyCerebrum = thinkCerebellum = balanceCorpus callosum joinscerebral hemispheres
The large cerebrum (forebrain) handles thinking and memory; the small cerebellum (hindbrain) sitting below it handles posture and balance. The corpus callosum joins the two cerebral hemispheres.

Your doubts, answered

Are cerebrum and cerebellum the same thing? The names sound alike.

No. They only sound alike. The cerebrum is the large, folded top part of the brain that fills most of the skull and controls thinking, memory, speech and voluntary actions. The cerebellum is a much smaller part sitting below and behind the cerebrum. Its main job is to keep posture and balance steady. Different size, different position, different work.

Which one is in the forebrain and which is in the hindbrain?

NCERT places them in different brain regions. The cerebrum belongs to the FOREBRAIN (along with thalamus and hypothalamus). The cerebellum belongs to the HINDBRAIN (along with pons and medulla oblongata). NEET loves this pairing, so memorise: cerebrum = forebrain, cerebellum = hindbrain.

Which is bigger, cerebrum or cerebellum?

The cerebrum is the largest part of the human brain. The cerebellum is much smaller. The two cerebral hemispheres of the cerebrum are joined by a nerve fibre tract called the corpus callosum. The cerebellum has its own surface but does not have this corpus callosum feature.

Does the cerebellum control movement or does the cerebrum?

Both help movement but in different ways. The cerebrum starts and commands voluntary movements (you decide to lift your hand). The cerebellum does not start the movement; it fine-tunes it so the movement is smooth and balanced, and it keeps posture steady. Think: cerebrum orders, cerebellum coordinates.

Is memory and intelligence in the cerebrum or cerebellum?

In the cerebrum. Its outer layer, the cerebral cortex (grey matter), handles thinking, memory, learning, intelligence, and processing of sensory and motor information. The cerebellum is not the seat of memory or intelligence; it manages balance and coordination.

⚠️ The NEET trap
Cerebellum is part of the forebrain and controls thinking.
Cerebellum is part of the HINDBRAIN and controls posture and balance; the CEREBRUM (forebrain) controls thinking.
🧠 NTA swaps the region. Lock it: cerebrum-forebrain-thinking, cerebellum-hindbrain-balance. If an option pairs cerebellum with the forebrain or with intelligence, it is wrong.

Real NEET questions

NEET 2024

Given below are two statements: Statement I: The cerebral hemispheres are connected by a nerve tract known as corpus callosum. Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum. Choose the most appropriate answer:

A · Both Statement I and Statement II are incorrect.
B · Statement I is correct but Statement II is incorrect.
C · Statement I is incorrect but Statement II is correct.
D · Both Statement I and Statement II are correct.
Solution: Statement I is correct: the two cerebral hemispheres of the cerebrum are joined by the corpus callosum. Statement II is wrong because the brain stem is made of midbrain, pons and medulla oblongata, NOT the cerebrum. The cerebrum is part of the forebrain, so it is not in the brain stem.
NEET 2024

Match List I with List II: A. Pons B. Hypothalamus C. Medulla D. Cerebellum I. Provides additional space for neurons, regulates posture and balance II. Controls respiration and gastric secretions III. Connects different regions of the brain IV. Neurosecretory cells

A · A-III, B-IV, C-II, D-I
B · A-I, B-III, C-II, D-IV
C · A-II, B-I, C-III, D-IV
D · A-II, B-III, C-I, D-IV
Solution: Cerebellum (D) matches I: it has a folded surface that gives extra space for neurons and it regulates posture and balance. Pons (A) connects regions of the brain, medulla (C) controls respiration, hypothalamus (B) has neurosecretory cells. This confirms the cerebellum's balance role versus the thinking role of the cerebrum.

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Frequently asked

What is the main difference between cerebrum and cerebellum?

The cerebrum is the largest forebrain part and controls thinking, memory and voluntary movement. The cerebellum is a smaller hindbrain part that controls posture and balance.

Which is larger, the cerebrum or the cerebellum?

The cerebrum is the largest part of the human brain. The cerebellum is much smaller and lies below and behind the cerebrum.

Is the cerebellum in the forebrain?

No. The cerebellum is part of the hindbrain, along with the pons and medulla oblongata. The cerebrum is the part in the forebrain.

What connects the two halves of the cerebrum?

The two cerebral hemispheres of the cerebrum are connected by a band of nerve fibres called the corpus callosum.

Does the cerebellum control balance?

Yes. The cerebellum regulates posture and balance and helps make voluntary movements smooth. It does not start the movement; the cerebrum does that.