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The difference between Cerebellum and Cerebrum depends upon factors like shape, structure, and functions. Both Cerebellum and Cerebrum are parts of the brain that control various functions of the body.
- The most common difference between Cerebellum and Cerebrum is their size.
- The cerebrum is the largest part of the brain and consists of the cerebral cortex.
- It is equal to 80% of the total weight of the human brain.
- On the other hand, the cerebellum is involved in cognitive functions such as attention and language, as well as emotional control.
- It controls the posture and also controls coordination and timing.
- The cerebellum accounts for 10% of the brain and contains 50 - 80% of the neurons.
Key Terms: Difference between Cerebellum and Cerebrum, Cerebellum, Cerebrum, Human brain, Brain, Cerebral hemisphere, Nervous system, Central nervous system, Neurons, Lobes, Cortex
Cerebrum
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The cerebrum is the largest part of the brain, accounting for around 80% of the total weight of the entire brain. It is the part of the brain that is in charge of voluntary movement, intelligence, and memory, among other things.
- The cerebrum is split into two hemispheres, the right and left hemispheres.
- They are responsible for different functions.
- Each cerebral hemisphere is surrounded by a layer of grey matter and white matter.
The frontal, parietal, occipital, and temporal lobes are the four lobes that occur in each cerebral hemisphere, with the frontal, parietal, and occipital lobes being the most prominent.
- The cerebrum has a functional role in the processes of learning, communication, and emotion.
- Each of the hemispheres is separated by a deep fissure called the longitudinal fissure.
- The cerebrum consists of sensory neurons, motor neurons and interneurons.
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Cerebellum
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The cerebellum is defined as the brain's control centre. It may be defined as the second biggest region of the brain despite the fact that it only accounts for 11 per cent of the entire brain.
- The cerebellum, like the cerebrum, is divided into two hemispheres.
- It is composed of two types of matter: outer grey matter and inner white matter.
- The cerebellum is home to about half of the brain's neurons and specialized cell populations.
- On the right side of the brain, it is called the amygdala, and it is situated behind the ear.
Each cerebellar hemisphere is divided into three lobes, which are referred to as the anterior, posterior, and flocculonodular lobes. The cerebellum was formerly thought to be a motor structure because of its role in motor learning, cognitive skills, the regulation of balance and posture, and other activities.
- However, it was proved incorrect.
- This part of the brain consists of a ventricle filled with fluid.
- It is composed of two cavities that are called lateral ventricles.
Similarities between Cerebellum and Cerebrum
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Given that the cerebellum and the cerebrum are very different, the only similarities that can be drawn between them are as follows:
- The cerebellum and cerebrum have a role in controlling movement and motor processes.
- Both help in learning and memory consolidation.
- They both communicate with the thalamus as well as with the colliculi of the brain.
- It is similar in that they are split into two hemispheres (the cerebral and cerebellar hemispheres), but their structures are distinct.
- They both contain grey matter on the exterior and white matter on the inside.
- However, the manner in which they innervate into one another is different.
Difference between Cerebellum and Cerebrum
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Some Differences between Cerebellum and Cerebrum are as follows:
| Cerebellum | Cerebrum |
|---|---|
| Cerebellum is the second largest part of the brain. | Cerebrum is the largest part of the brain. |
| It forms a part of the hindbrain. | It forms a part of the forebrain. |
| This part of brain has two cerebellar hemispheres as well as a medial vermis. | This part of brain is composed of two cerebral hemispheres, each with four lobes: temporal, parietal, occipital, and frontal. |
| Arborvitae is formed by white matter in this area. | The white matter, unlike the cerebellum, does not produce arbor vitae. |
| It controls precision, coordination, timing accuracy, and posture. | It is in charge of voluntary movement, intellect, and memory. |
Cerebellum and Cerebrum
Injuries to the Brain
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Brain injuries are a type of traumatic injury because the brain is a crucial organ. Any damage to it may have a negative impact on the rest of the body's functioning.
- The term "traumatic brain injury" refers to damage to the brain that occurs as a consequence of extreme force or automobile accidents.
- The consequences of the injury are dependent on a number of criteria, including its severity, location, and kind.
Other occurrences and conditions that do not require trauma, such as stroke, encephalitis, cancer, brain haemorrhaging, or even improperly folded proteins, such as prions, can cause brain injury in certain individuals.
- These might have a negative impact on brain function, thereby affecting one's quality of life.
Things to Remember
- The difference between Cerebellum and Cerebrum depends upon the function of both parts of the brain.
- The cerebellum functions involve voluntary movements, including posture, balance, coordination, and speech.
- It is also called a little brain as it is very similar to the cerebrum, which is the main portion of the brain.
- Human motor and cognitive abilities in humans are derived from the changes at all levels of the central nervous system.
- The cerebrum manages and processes your five senses.
- It has the ability to read, write and speak.
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Sample Questions
Ques: What is the role of the cerebrum and the cerebellum, and how do they interact? (2 marks)
Ans:The cerebrum is the biggest portion of the brain and is divided into two hemispheres, one on either side of the midline. Higher functions such as interpreting touch, vision, and hearing, as well as speaking, thinking, emotions, and learning, as well as fine motor control, are all performed by the brain. The cerebellum is a part of the brain that is positioned underneath the cerebrum.
Ques: Can a human live without a cerebellum? (2 marks)
Ans: Cerebellum takes up so much space even though the cerebellum has so many neurons, but it is possible to survive without a cerebellum, Various Human beings have survived without it. cerebellar agenesis includes nine known cases in which there is a condition where its structure never develops. These basic functions of the cerebellum are known by various scientists.
Ques: Does cerebellum affect hearing in Human Beings? (2 marks)
Ans: It is quite evident that the cerebellum has a set of regions that are responsive to auditory stimuli after reviewing the literature. Any damage to the cerebellum can cause negative effects in terms of performance on auditory tasks also. Damage to it would specifically damage the hearing in terms of temporal and pitch perception by which we get to known that cerebellum affect hearing in Human Beings.
Ques: The cerebrum and the cerebellum have many anatomical similarities, yet they also vary in important ways? (3 marks)
Ans:The cerebral cortex, which is the outer layer of the cerebrum, is made up of both grey and white matter, and it is located on the outside of the brain. The cerebellum is comparable to the cerebrum in that it contains two hemispheres and a cortex with a highly folded surface, which is similar to the cerebrum. The cerebellum, which is the second biggest portion of the brain and is positioned in the rear of the skull, is the most important element of the nervous system.
Ques: Why does the cerebellum appear to be distinct in appearance from the cerebrum? (2 marks)
Ans: The cerebellum seems to be a distinct structure connected to the bottom of the brain, nestled under the cerebral hemispheres, and is in fact a part of the brain. The cerebellum's surface is covered with precisely spaced parallel grooves, which stands in stark contrast to the cerebral cortex's surface, which is covered with wide irregular convolutions.
Ques: What is the difference between sensory and motor neurons? (3 marks)
Ans: The difference between sensory and motor neurons are as follows:
| Sensory Neuron | Motor Neuron |
|---|---|
| Sensory neuron is located at dorsal ganglion of spinal cord. | Motor neuron is located at spinal cord connecting with the Nervous System |
| Its functions include controlling the senses. | Its functions include controlling voluntary and involuntary movements. |
| Its transmission channel is from organs to the brain. | Its transmission channel is from central nervous system to the organs. |
Ques: What are the components of cerebellum? (2 marks)
Ans: The components of cerebellum are as follows:
- Cerebellar Cortex: Cerebellar Cortex is composed of folded tissues. It contains majority of neurons present in the cerebellum.
- Cerebellar Nuclei: Cerebellar Nuclei consists of nerve cells that is responsible for transfer of information from the cerebellum.
Ques: What are the three lobes found in cerebellum? (3 marks)
Ans: The three lobes found in cerebellum are as follows:
- Posterior lobe: Posterior lobe main function involves coordination among muscles.
- Anterior lobe: Anterior lobe main function involves sensing the position of the body.
- Flocculonodular lobe: Flocculonodular lobe main function involves coordinating the eye and head movements.
Ques: What are the types of neurons found in cerebrum? (3 marks)
Ans: There are three types of neurons found in neurons which are as follows:
- Sensory neuron: Sensory neuron is responsible for creating sensation in the body.
- Motor Neuron: These neurons are responsible for controlling voluntary and involuntary movements.
- Interneurons: Interneurons is a type of nerves that are connected to neurons of the body.
Ques: What is the difference between cerebellum and cerebrum? (3 marks)
Ans: The cerebellum is significantly larger than the cerebrum in terms of size, indicating a significant discrepancy in proportion. The cerebrum is the largest part of the brain, accounting for around 80% of the total weight of the entire brain.
- The cerebellum is the last component of the brain, located towards the base of the skull.
- The cerebrum is the part of the brain that is in charge of voluntary movement, intelligence, and memory, among other things.
- The cerebellum is in charge of regulating accuracy, coordination, and timing, as well as controlling posture.
Ques: Name the type of tissues found in the cerebrum? (2 marks)
Ans: The type of tissues found in the cerebrum are as follows:
- Gray Matter: The cerebral cortex, which makes up the surface of each cerebral hemisphere, is composed of a gray substance and is important in recognition and processing.
- White Matter: The majority of the brain's deeper regions are made up of white matter. It is made up of myelinated axons and glial cells that link various gray matter regions.
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