What Is The Cerebellum Of The Brain Responsible For
The cerebellum plays a vital role in several processes other than muscle movement coordination.
For one, the cerebellum is essential for proper vision, as it gives your brain full control of voluntary eye movements. This, in turn, helps improve your eye-to-hand coordination, as well as peripheral vision.
This brain region is also in charge of motor learning, a process that allows your body to learn, practice, and fine-tune certain types of movements. These can include anything from breathing, chewing, walking, and swallowing to playing an instrument, riding a bicycle, dancing, or swimming.
In addition to all this, recent research shows that the cerebellum may also play a part in critical thinking.
Scientists believe that the cerebellum can impact your thoughts the same way it does your movements, although the exact extent of its role in thinking-related processes has yet to be examined.
How Long Can The Brain Live Outside The Body
Asked by: James Forbes, by email
The metabolic needs of vertebrate brains are actually fairly simple mainly oxygen and glucose. These can be supplied by connecting the blood vessels that supply the brain with an artificial blood substitute or by immersing the blood in an artificial cerebro-spinal fluid and oxygenating that directly. Guinea pig, dog and monkey brains have all been kept alive for hours or even days after being removed.
The problem is that, without an attached body, the health of the brain can only be assessed in a fairly basic way. Generally the uptake of oxygen and presence of electrical activity are taken as evidence that the brain is alive. Since there is currently no way to reattach the severed spinal cord, it is very difficult to judge whether the brain is still conscious and fully functioning.
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Coordination Of Muscle Movement
Every movement that you want to make starts as an idea in your brain. As soon as the idea is shaped, a corresponding signal is created in the motor cortex of the cerebrum. This signal then travels to the cerebellum.
The cerebellum is the part of the brain that will relay this signal to instruct all other parts of the body to carry out your planned movement. However, the role of this brain region stretches far beyond that. Rather than just triggering muscle movement, the cerebellum also helps coordinate it.
Lets say that youre a drummer in a rock band. When youre playing, youre not just using your arms. Youre also using your legs. Whats more, your back also plays a part by allowing you to maintain good posture.
All this involves several muscle groups in different parts of your body.
Its your cerebellums task to keep them all in perfect sync while youre performing. If just one group of muscles fails, you wont be able to move your body the way you want to and thus wont be able to create your desired sound.
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Ventricles And Cerebrospinal Fluid
The brain has hollow fluid-filled cavities called ventricles . Inside the ventricles is a ribbon-like structure called the choroid plexus that makes clear colorless cerebrospinal fluid . CSF flows within and around the brain and spinal cord to help cushion it from injury. This circulating fluid is constantly being absorbed and replenished.
There are two ventricles deep within the cerebral hemispheres called the lateral ventricles. They both connect with the third ventricle through a separate opening called the foramen of Monro. The third ventricle connects with the fourth ventricle through a long narrow tube called the aqueduct of Sylvius. From the fourth ventricle, CSF flows into the subarachnoid space where it bathes and cushions the brain. CSF is recycled by special structures in the superior sagittal sinus called arachnoid villi.
A balance is maintained between the amount of CSF that is absorbed and the amount that is produced. A disruption or blockage in the system can cause a build up of CSF, which can cause enlargement of the ventricles or cause a collection of fluid in the spinal cord .
What Part Of The Brain Can You Live Without
Which bit are you giving THIS ONE IS THE BOYS
As it is still not fully understood what all parts of the brainsare used for in basic and advanced functions , I would not advise you remove/dispose of anypart.
It also depends on wheter you have someone to care for you, asremoval of the brain has historically rended people disabled, atleast temporarily, so it could be argued none, as you would beunable to fend for yourself after it had been removed THIS ONE ISMYN
Omg you guys don’t now anything a brain can live without anypart . you guys should now better because i am a girl so maybegirls are smarter than boys girls go to college to get more nollageboys go to Jupiter to get more stupider
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Why Do They Say Fear Lies Deep Within Your Mind
Another interesting fact is about the more well-known structure, the amygdala, located within the depths of the anterior-inferior temporal lobe.
According to an interview with Dr. Rahul Jandial, a neurosurgeon and scientist at City of Hope Cancer Center in Los Angeles, California, stated that you can surgically remove one part of your temporal lobe as part of a brain surgery called selective amygdalohippocampectomy.
Now that is a mouth full!
In fact, a study conducted on animals that had their amygdala removed showed that they live normal lives except for one notable new development: They dont feel fear. Hence why its referred to as the fear factor of the brain.
Why Does The Brain Need Oxygen
The brain represents just 2% of a person’s body weight, yet it uses about 20% of the body’s oxygen supply. Without it, the brain can’t perform even the most basic functions. The brain relies on glucose to power the neurons that control everything from conscious functions like planning and thought to automatic, unconscious processes like managing heart rate and digestion.
Without oxygen, the brain’s cells cannot metabolize glucose, and therefore cannot convert glucose into energy.
When your brain is deprived of oxygen, then, the ultimate cause of brain death is inadequate energy to power the brain’s cells.
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Understanding Tbi: Part 2
A traumatic brain injury interferes with the way the brain normally works. When nerve cells in the brain are damaged, they can no longer send information to each other in the normal way. This causes changes in the person’s behavior and abilities. The injury may cause different problems, depending upon which parts of the brain were damaged most.
There are three general types of problems that can happen after TBI: physical, cognitive and emotional/ behavioral problems. It is impossible to tell early on which specific problems a person will have after a TBI. Problems typically improve as the person recovers, but this may take weeks or months. With some severe injuries changes can take many years.
The Architecture Of The Brain
The brain is like a committee of experts. All the parts of the brain work together, but each part has its own special properties. The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain.
The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum . The hindbrain controls the bodys vital functions such as respiration and heart rate. The cerebellum coordinates movement and is involved in learned rote movements. When you play the piano or hit a tennis ball you are activating the cerebellum. The uppermost part of the brainstem is the midbrain, which controls some reflex actions and is part of the circuit involved in the control of eye movements and other voluntary movements. The forebrain is the largest and most highly developed part of the human brain: it consists primarily of the cerebrum and the structures hidden beneath it .
When people see pictures of the brain it is usually the cerebrum that they notice. The cerebrum sits at the topmost part of the brain and is the source of intellectual activities. It holds your memories, allows you to plan, enables you to imagine and think. It allows you to recognize friends, read books, and play games.
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Other Parts Of The Temporal Lobe And Their Functions:
Plays an important role in allowing us to understand speech and sounds.
Uniquely shaped, the hippocamp has the head and body of a horse and the backside of a dolphin. It is responsible for memory processing.
Small and almond-shaped. It is related to emotion, fear, and manages the fight-or-flight reflex.
The Cerebrum: Front Part Of The Brain
The largest part of the brain, located in the front, is called the cerebrum. The cerebrum is responsible for:
The cerebrum is made up of the right and left cerebral hemispheres. The hemispheres are connected at the bottom and have a deep groove running between them. In general, the right cerebral hemisphere controls the left side of the body, and the left cerebral hemisphere controls the right. The right side is involved with creativity and artistic abilities. The left side is important for logic and rational thinking.
The cerebral hemispheres are divided into lobes . Each lobe is responsible for a variety of bodily functions. Frontal lobes are involved with personality, speech, and motor development. Temporal lobes are responsible for memory, language and speech function. Parietal lobes are involved with sensation, while the occipital lobes are the primary vision centers.
The surface of the cerebrum appears wrinkled and is made up of deep grooves and bumps or folds . The outer part of the cerebrum is called gray matter and contains nerve cells. The inner part is called white matter and contains connections of nerves.
Neurohistology Embedding Sectioning And Staining
Brains were examined, then treated overnight with 20% glycerol and 2% dimethylsulfoxide to prevent freeze-artifacts. The specimens were then embedded in a gelatin matrix using MultiBrainTechnology . The blocks were rapidly frozen, after curing by immersion in 2-Methylbutane chilled with crushed dry ice and mounted on a freezing stage of an AO 860 sliding microtome. The MultiBrain® blocks were sectioned in coronally on the microtome. All sections were cut through the entire length of the specimen segment and collected sequentially into series of 24 containers. All containers contained Antigen Preserve solution no sections were discarded.
For the Thionine Nissl Stain, set of every twelfth section was mounted on gelatin coated glass slides, air dried and carried through the following sequence: 95% ethanol, 95% ethanol/Formaldehyde 95% ethanol, Chloroform/Ether/absolute ethanol , 95% ethanol 10% HCl/ethanol, 95% ethanol, 70% ethanol, deionized water, Thionine , deionized water, 70% ethanol, 95% ethanol, Acetic Acid/ethanol, 95% ethanol, 100% ethanol, 100% ethanol, 1:1 100% ethanol/xylene, xylene, xylene, coverslip.
Each slide was laser etched with the block number and the stain. Following serial ordering of the slides, rostral to caudal for each stain, the slides were numbered by permanent ink in the upper right corner.
What Happens If There Is Damage To The Cerebellum
Damage to the cerebellum can cause problems with muscle control and coordination. These can include the following:
Viruses, brain tumors, head injuries, and exposure to toxins can all cause damage to the cerebellum. This damage usually results in a condition known as ataxia, which is characterized by a noticeable loss of muscle control and coordination.
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What Does The Cerebellum Do And Can You Live Without It
The cerebellum is the symmetrical, cauliflower-shaped part of the brain located at the back of your head.
Although it constitutes only one-tenth of the total brain weight, the cerebellum is just as important as all other parts of the brain. Containing billions of densely packed, fully functional neurons, this region of the brain plays a crucial role in many vital processes.
So, what does the cerebellum do exactly?
In this article, we will answer the most common questions about the cerebellum and its main functions.
The Cerebellum: Back Of The Brain
Behind the cerebrum at the back of the head lies the cerebellum. In Latin, cerebellum means little brain, but the cerebellum actually contains more nerve cells than both hemispheres combined. The cerebellum is primarily a movement control center, responsible for:
- Voluntary muscle movements
- Fine motor skills
- Maintaining balance, posture & equilibrium
Unlike the cerebrum, the left cerebellum controls the left side of the body, and the right cerebellum controls the right side of the body.
Right Brain Left Brain
The cerebrum is divided into two halves: the right and left hemispheres They are joined by a bundle of fibers called the corpus callosum that transmits messages from one side to the other. Each hemisphere controls the opposite side of the body. If a stroke occurs on the right side of the brain, your left arm or leg may be weak or paralyzed.
Not all functions of the hemispheres are shared. In general, the left hemisphere controls speech, comprehension, arithmetic, and writing. The right hemisphere controls creativity, spatial ability, artistic, and musical skills. The left hemisphere is dominant in hand use and language in about 92% of people.
What Would Happen If The Temporal Lobe Was Damaged
Since it has a variety of functions that play a major role in sensing and behavior, damage to the temporal lobe can be quite serious. The area of the lobe thats damaged determines the resulting symptoms.
Damage to the right hemisphere can cause continuous talking, while damage to the left hemisphere can cause a disruption in word recognition.
The reason why Alzheimers disease causes memory loss is due to its effects on the hippocampus, part of the temporal lobe.
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Other Cool Facts About The Brain
- The brain can’t multitask, according to the Dent Neurologic Institute. Instead, it switches between tasks, which increases errors and makes things take longer.
- The human brain triples in size during the first year of life and reaches full maturity at about age 25.
- Humans use all of the brain all of the time, not just 10% of it.
- The brain is 60% fat, according to Northwestern Medicine.
- The human brain can generate 23 watts of electrical power enough to fuel a small lightbulb.
How Brain Stem Injuries Happen
Brain stem injuries can occur in a variety of ways from a brain stem injury car accident, to slipping and falling. A brain stem injury resulting from a car accident can even occur through whiplash. Slipping and falling can result in blunt force trauma to a persons head, which can lead to the hemorrhaging mentioned above. One of the most common causes of brain stem injury are Las Vegas motorcycle accidents.
If you have been involved in an accident and have suffered an injury to your brain stem, it is vital that you consult with an attorney. Brain stem injuries are often the most devasting injuries a person can suffer because the care the person will need after the accident is expensive and may be needed for the rest of the victims life.
Furthermore, the injury may take away a persons ability to work. Please contact Las Vegas personal injury attorney firm Valiente Mott for a free consultation today if you have been involved in an accident involving an injury to your brain stem.
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How The Brain Still Works When Half Of It Is Missing
ByYasemin Saplakoglu22 November 2019
The brain has an amazing ability to adapt, as shown in a new study of people who’d had half their brain removed.
That wrinkly and mysterious organ we carry around in our skulls has an almost magical ability to change and adapt, a characteristic that is particularly apparent in a new study of people who’d had half of their brain removed.
The study, published Nov. 19 in the journal Cell Reports, focused on a small group of people who had a hemispherectomy, a surgical procedure in which half of the brain is removed, during childhood. The findings showed that, despite missing an entire half of this critical organ, participants could function just fine because the remaining half of their brain strengthened, the authors said.
It’s known that the brain is very “plastic,” meaning that it can constantly form new networks or connections between brain cells. In fact, that’s how we learn new skills: the more and more we practice the guitar, for example, the more and more the brain networks responsible for musical prowess will strengthen.
One of the best ways to understand this plasticity is to study patients who had parts of their brains removed. For the new study, a group of researchers at the California Institute of Technology analyzed the brains of six adults in their 20s and 30s who had hemispherectomies when they were between 3 months old and 11 years old to reduce epileptic seizures.
Brain Areas & Associated Functions
The brain is made up of six parts that can be injured in a head injury. The effect of a brain injury is partially determined by the location of the injury. Sometimes only a single area is affected, but in most cases of TBI multiple areas have been injured. When all areas of the brain are affected, the injury can be very severe.
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