Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Structure of brain essay
Human brain anatomy
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Structure of brain essay
The human brain consists on the left cerebral hemisphere and the right cerebral hemisphere, which signifies the control of the four lobes and its functions. The left cerebral hemisphere is an important section of the brain with the usage of speech, reading, and writing skills. The right cerebral hemisphere is also an important section as to the development of understanding, paying attention, and expressing emotions. Then within each cerebral hemisphere are four major areas call the Frontal, Parietal, Temporal, and Occipital lobe. Some brain functions are located in a specific hemispheric region. Some functions are in both hemisphere and some are unilaterally represented. The cerebral hemispheres are very similar in appearance, but they differ …show more content…
And it is also believed to control general cognitive functions. Then the left cerebral hemisphere controls movement of the right side of the body and the left hemisphere controls movement on the right side of the body. Therefore, damage in the motor area on either side of the brain affects the opposite side of the brain. Also, depending on the severity, an effect on the left cerebral hemisphere may result in functional loss or motor skill impairment of the right side of the body, and may also cause loss of speech. However, it is not too surprising that this highest function would localize in the most advanced regions and further still that this function would tend to utilize the greatest expanse of advance cortex, which happens to be, in most, located on the left cerebral …show more content…
The cerebral cortex contains about half of all neurons in the human brain and serves as the highest level of brain functions. The inside of the cerebral hemisphere contain several large interconnected clusters of cell bodies known as basal ganglia. These link sensory parts of the cerebral cortex to its motor parts, and connect the motor parts of the brain stem and spinal cord. They are involved in initiating and directing responding. The basal ganglia are also thought to play a key role in language, thought, emotional behavior, and motivation. Then one suggestion is that the basal ganglia selects and reinforces appropriate actions or behavior, while extinguishing or inhibiting unwanted or inappropriate actions or behaviors. The basal ganglia are involved in a number of circuits. The most obvious one begins with a pathway from the cerebral cortex to the striatum and sub thalamic nucleus. Each of these three zones of the striatum feeds back to the corresponding parts of the cerebral cortex: the putamen feeds back to motor areas of the cortex, the caudate to the prefrontal cortex for thought and planning, and the nucleus accumbens to the limbic areas. The observations
The brain has four major lobes. The frontal lobe, the parietal lobe, the occipital lobe, and temporal lobe are responsible for all of the activities of the body, from seeing, hearing, tasting, to touching, moving, and even memory. After many years of debating, scientist presents what they called the localization issue, Garret explains how Fritsch and Hitzig studied dog with conforming observations, but the cases of Phineas Gage’s accident in 1848 and Paul Broca’s autopsy of a man brain in 1861 really grabbed the attention of an enthusiastic scientific community (Garret 2015 p.6)
The textbook mentioned how it is possible to live with one side of the brain (Lilienfeld et al., 2016). However, I was still a bit confused on this concept because I have always thought that you need both hemispheres working together to function properly. As I watched the TedTalk, I was further able to change my understanding of the concept that you can live with one hemisphere, you would just lose some functions associated with that hemisphere, as Jill explained (Taylor, 2008). Not only that, but from the textbook I never understood how you would feel without one of your hemispheres not functioning properly, I personally thought that you would lose some abilities and it would be difficult to survive. However, the TedTalk changed this understanding of mine because, like Jill, although she lost some functions, she lost all her stresses, and she felt peace, as she states, “So here I am in this space, and my job, and any stress related to my job - it was gone. And I felt lighter in my body. And imagine all of the relationships in the external world and any stressors related to any of those - they were gone. And I felt this sense of peacefulness” (Taylor, 2008). It gave her a whole new world and it never occurred to me that this could happen, so it really expanded on the knowledge obtained from the
Nowadays, it is widely known that the right and left hemisphere have different functions. The two hemispheres are equally important in a daily life basis. Nevertheless, in the 1960’s this was not common knowledge. Even though today the importance of the brain hemispheres is common knowledge, people don’t usually know to whom attribute this findings. One of the people who contributed to form a more defined picture about the brain hemispheres and their respective functions was Roger Wolcott Sperry, with the split brain research. Roger Sperry did more contributions than the split brain research, but this is his most important and revolutionary research in the psychological field. Thanks to the split brain research, Sperry proved that the two hemispheres of the brain are important, they work together and whatever side of the brain is more capable of doing the task is the hemisphere that takes the lead.
The Frontal Lobe: Is the anterior part of cerebral hemisphere of the cerebrum of the brain, extending back to region called the central sulcus is a deep cleft on the upper surface of the brain. The frontal lobe is for intelligence which carries out high mental procedures such as thinking, judgment making, and forecasting. The human body uses their frontal lobe nearly every day. The frontal lobe
The cerebrum is located at the anterior-most part of the brain and is responsible for the combination of complex sensory and neural functions, as well as the initiation and coordination of voluntary activity in the body. It is the largest brain structure in humans and makes up two-thirds of the total mass of the brain (“Cerebrum Anatomy”, 2015). Its surface, a covering made up of grey matter usually 2-4mm thick, is called the cerebral cortex and is mainly made up of the cell bodies of neurons. The cerebral cortex is responsible for integrating sensory impulses, directing motor activity, and controlling higher intellectual functions. It is also responsible for the state of consciousness, which still remains a mystery to neurologists and the rest of the science community (Swenson, 2007).
The two hemispheres of the brain are the left and the right hemisphere. Each having it's own unique purpose and function. The two hemispheres are separated by a fold down the middle connected only by a thick nerve cable called the corpus callosum. The Left hemisphere is thought to be the logical side controlling speech, reading, writing, details, facts, maths and science and rational, literal, practical analysis. The right hemisphere is seen as controlling the intuitive, creative side of life, with spatial perception, symbols and images, face recognition, imagination, beliefs and fantasy. (Vered, 2013, www.brainskills.co.uk)
The frontal lobe comprises a third of the brain and it enables us to engage in higher cognitive functions such as planning and problem solving (Jonides & Smith, 1999). The frontal lobe is divided into 3 regions, the motor cortex, premotor cortex, and prefrontal cortex. The motor cortex is located in the precentral gyrus and directs fine motor coordination. The premotor cortex is involved in planning, organizing, and integrating body movements. The prefrontal is involved in executive functions, including short-term memory, working memory, decision making, and prioritizing behaviors (Wilson, 2003). Some of the frontal lobe disorders than can cause brain damage and behavioral changes are Huntington’s disease, infection, stroke, tourettes, dementia, epilepsy, Parkinson’s disease, tumors, closed head injury and traumatic brain injury (Chow, 2000).
The left and right hemispheres of the brain are each divided into sections. Within each sections are lobes, controlling such processes as our visualization, our movement, and our personalities. For instance, the occipital lobe in the back of our brain is responsible for processing vision, and the frontal lobe behind our forehead controls cognition and personality. The lobes of the brain are split between the right and left hemispheres of the brain. This well-designed arrangement is for the lobes to function correctly, so the two hemispheres of the brain can communicate with one
The brain, like the rest of the nervous system, is composed by and large of neuralgia (glial cells), nerve cells (neurons), that are immersed in a constant flow of cerebrospinal fluid. The glial cells far outnumber the neurons, but have no axons or synapses, and therefore do not play a part in the electrical activity of the brain. They are simpler looking, much smaller, and have lower metabolic rates than neurons.
The human brain is the control center of the human body. It is the most important part of the body, because without a brain, none of us would be alive. In the brain, there are the cerebrum, the cerebellum, and the brain stem. The cerebrum holds memories, controls movement, and does problem solving and thinking. It is the biggest part of your brain. The cerebellum is underneath the cerebrum; it controls coordination and balance. The brain stem is the part closest to the neck. It controls breathing, heart rate, blood pressure, digestion, etc. (Alzheimer's Assosiation, 2011). The brain has two hemispheres as well as the three major sections; the right hemisphere and the left hemisphere. There is not exactly a “music area” in the brain.
Middleton, F.A., & Strick, P.L. (1994). Anatomical Evidence for Cerebellar and Basal Ganglia Involvement in Higher Cognitive Function. Science, 266, 458-461.
The brain consists of both neurons and glia cells. The neurons, which are cells housed in a cell body called a Soma, have branches which extend from them, referred to as dendrites. From these dendrites extend axons which send and receive impulses, ending at junction points called synapses. It is at these synapse points that the transfer of information takes place.
The left and right hemispheres of the brain are each divided into sections. Within each sections are lobes, controlling such processes as our visualization, our movement, and our personalities. For instance, the occipital lobe in the back of our brain is responsible for processing vision, and the frontal lobe behind our forehead controls cognition and personality. The lobes of the brain are split between the right and left hemispheres of the brain. This well-designed arrangement is for the lobes to function correctly, so the two hemispheres of the brain can communicate with one
In the video "Powerful Stoke of Insight," Dr. Taylor share a personal story of how she experienced when she had a stoke years ago. She vividly illustrated the distinct functions of left hemisphere and right hemisphere. Since her stoke occurred in the left hemisphere, she had a hard time to process language during the tragic event happened. She was paralysis and could not understand any of the word from 911 telephone operator when she finally reached the phone. According to Dr. Taylor, "Our right human hemisphere is all about this present moment, [and] our left hemisphere thinks linearly and methodically." Due to the reason that her stoke damaged her left hemisphere, she could not think logically at the moment. This presentation thoroughly explain the concept of lateralization in biological psychology research method. I find it very interesting because I never learn that each hemisphere do in charge of different functions that affecting our
...re of the brain is just half of the brain so why is it the only half being explored in school? This failure to confront the other hemisphere causes weakening in the right hemisphere since the right hemisphere isn?t being exercised.