The major difference Between Cerebellum and Cerebrum is their size. The cerebellum makes up the remaining part of the brain. Voluntary movement, intelligence and memory are controlled by the cerebrum. Precision, coordination and accurate timing, posture are all controlled but the cerebellum.
The cerebrum is located in the upper part of the cranial cavity, which is a space inside the top of the skull. It is divided into a right hemisphere and a left hemisphere by a deep groove known as the longitudinal fissure. The right half of the cerebrum controls the left side of the body.
The cerebrum or telencephalon is a large part of the brain containing the cerebral cortex (of the two cerebral hemispheres), as well as several subcortical structures, including the hippocampus, basal ganglia, and olfactory bulb. In the human brain, the cerebrum is the uppermost region of the central nervous system.
Functions of a Brain
- Attention and concentration.
- Self-monitoring.
- Organization.
- Speaking (expressive language) • Motor planning and initiation.
- Awareness of abilities and limitations.
- Personality.
- Mental flexibility.
- Inhibition of behavior.
The most complicated part of the brain is the neocortex, which is part of the cerebral cortex.
The main parts of the brain involved with memory are the amygdala, the hippocampus, the cerebellum, and the prefrontal cortex ([link]). The amygdala is involved in fear and fear memories. The hippocampus is associated with declarative and episodic memory as well as recognition memory.
The cerebral cortex is involved in several functions of the body including:
- Determining intelligence.
- Determining personality.
- Motor function.
- Planning and organization.
- Touch sensation.
- Processing sensory information.
- Language processing.
Broca's area. Broca's area, or the Broca area (/ˈbro?k?/, also UK: /ˈbr?k?/, US: /ˈbro?k?ː/), is a region in the frontal lobe of the dominant hemisphere, usually the left, of the brain with functions linked to speech production.
Besides the medulla oblongata, your brainstem also has a structure called the pons. The pons is a major structure in the upper part of your brainstem. It is involved in the control of breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance.
The medulla oblongata helps regulate breathing, heart and blood vessel function, digestion, sneezing, and swallowing. This part of the brain is a center for respiration and circulation. Sensory and motor neurons (nerve cells) from the forebrain and midbrain travel through the medulla.
Provides instructions to cerebral motor cortex and subcortical motor centers that result in proper balance and posture and smooth, coordinated skeletal muscle movements. White matter of the cerebellum named for it's tree like appearance (tree of life).
The thalamus is a small structure within the brain located just above the brain stem between the cerebral cortex and the midbrain and has extensive nerve connections to both. The main function of the thalamus is to relay motor and sensory signals to the cerebral cortex.
Pons is Latin for "bridge"; the structure was given its name by the Italian anatomist Costanzo Varolio, who thought that the most conspicuous portion of the pons resembled a bridge that connected the two cerebellar hemispheres.
the cerebellum, pons and medulla. is the largest part of the human brain, associated with higher brain function such as thought and action. a bundle of axons which connects these two hemispheres. associated with regulation and coordination of movement, posture, and balance.
what is the reticular formation? it is a network within the brainstem. a coordinating system wth connections to sensory, somatic motor and visceral motor systems.
Brain stem: The brainstem is located at the juncture of the cerebrum and the spinal column. It consists of the midbrain, medulla oblongata, and the pons.
Pons is Latin for bridge. In the brain, the pons is a horse shoe-shaped structure in the brain stem that is crucial to life. It consists of nerve fibers that connect the cerebrum and the cerebellum, and bridges sensory information between the left and right hemispheres of the brain.
Nerves
- Glossopharyngeal Nerve (IX): This nerve has three functions from three different nuclei, the main motor nucleus, parasympathetic nucleus, and sensory nucleus.
- Vagus Nerve (X): The tenth cranial nerve contains four nuclei in the medulla.
The brain's sensory switchboard, located on top of the brainstem; it directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla. The thalamus relieves input from what senses. All senses except smell.
Dura Mater
The outermost mater of the meninges, the dura, is composed of two layers: the periosteal layer that lies closest to the calvarium and the meningeal layer that lies closest to the brain tissue.Contains both motor and sensory neurons from the midbrain and forebrain. As a part of the brainstem, the medulla oblongata helps in the transferring of messages between various parts of the brain and the spinal cord.
Sleep and consciousness – The reticular formation has projections to the thalamus and cerebral cortex that allow it to exert some control over which sensory signals reach the cerebrum and come to our conscious attention. It plays a central role in states of consciousness like alertness and sleep.
The brain stem serves multiple functions, but its main function is to regulate the autonomic, most fundamental functions of the brain—regulating heart rate, controlling reflexes, breathing, and consciousness. This is accomplished through the brain stem's 3 regions: the Midbrain, the Pons, and the Medulla Oblongata.
The pons is a portion of the brain stem, located above the medulla oblongata and below the midbrain. It is a bridge between various parts of the nervous system, including the cerebellum and cerebrum, which are both parts of the brain.
What are the symptoms of acute cerebellar ataxia?
- impaired coordination in the torso or arms and legs.
- frequent stumbling.
- an unsteady gait.
- uncontrolled or repetitive eye movements.
- trouble eating and performing other fine motor tasks.
- slurred speech.
- vocal changes.
- headaches.
Damage to the cerebellum can lead to: 1) loss of coordination of motor movement (asynergia), 2) the inability to judge distance and when to stop (dysmetria), 3) the inability to perform rapid alternating movements (adiadochokinesia), 4) movement tremors (intention tremor), 5) staggering, wide based walking (ataxic gait
Upon injury of the developing mouse cerebellum, endogenous repair mechanisms can heal the brain and prevent behavioral motor deficits.At the right time, with the right cues, the brain can repair itself. Brain injuries, neurodegeneration or neuroinflammation can lead to neuronal death.
They have argued that memory is located in specific parts of the brain, and specific neurons can be recognized for their involvement in forming memories. The main parts of the brain involved with memory are the amygdala, the hippocampus, the cerebellum, and the prefrontal cortex ([link]).
Functional imaging findings indicate that the cerebellum is activated acutely by drugs of abuse (Table 2), including cocaine (Risinger et al., 2005), methylphenidate (Volkow et al., 1997, 1999; Volkow et al., 2003; Volkow et al., 2006), marijuana (Mathew et al., 1998; Mathew et al., 2002; Volkow et al., 1991, 1996),
The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.
The brain has three main parts: the cerebrum, cerebellum and brainstem. Cerebrum: is the largest part of the brain and is composed of right and left hemispheres. It performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement.
We now know that numerous regions in every major lobe (frontal, parietal, occipital and temporal lobes; and the cerebellum, an area at the bottom of the brain) are involved in our ability to produce and comprehend language.
