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short note on human brain
essay on brain structure
alzheimers disease intro scientific papers
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Introduction
Humans have been considered the highest form of living things on earth . This is not attributed to the fact that the human body is strong or agile , because there are multiple animals that possess strength and agility far beyond the imagination of humans . The main characteristic that distinguishes humans from all other organisms is the brain . The brain is the powerhouse of the body . However this is also the site of the mind . The mind has been said to give humans superior status over other creatures . With this one significant characteristic, humans have the ability to reason , feel and adapt . Man has crossed many miles stones beyond the capabilities of any other living thing ad there are many more feats to be reached
Structure Of The Brain
The brain has three main parts, the Cerebrum, the Cerebellum, and the Brain Stem, The brain is divided into regions which control specific functions
The Cerebrum is the largest part of the brain , it controls certain fucntions such as perception, imagination , thought ,judgement and decision making . The surface of the Cerebrum (Cerebral cortex) is comprises of six thin layers of neurons , that rest ontop of a large surface of white matter pathways . The cortex is extemerly twisted and coiled to the point that if it is spread out, it might actually take up as much as 2.5 Square feet, and it comprises of 10 billion neurons and about 50 trillion synapses.The furthest part is the frontal lobe and is very important because its responsibility consists of voluntary movement and planning is thought to be the most significant lob for personality and intelligence .Behind the frontal Lobe is the parietal lobe, which includes the somatosensory area which happens to be just be...
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...basic tasks . It is most common among older people Alzheimers disease is named after Dr. Alois Alzheimer in 1906 who noticed changes in the brain tissue of a woman who had died of mental illness
Scientist have no figured out what causes Alzheimer’s Disease , but its clear that it develops because of a complex series of events which take place in the brain over an accumulated period of time . Alzheimer Disease is complex and there is no indication of a way to delay, prevent or cure it , although medications like rivastigime ,galantamine and Donepezil are used to treat mild and early stages of Alzheimer’s there are also drugs to treat some particular symptoms of Alzheimers like sleepness ,agitation , wandering and depression
Although the brain only weighs about three pounds, it is a very powerful and essential organ in the body (Brain Structures and Their Functions). The cerebrum, cerebellum, and the brain stem are the three main parts of the brain. The cerebrum fills up most of the skull, its main functions are for remembering, problem solving, thinking, and feeling (Bellamy 23). It also controls movement throughout the body. The cerebellum is located towards the back of the head. It controls mostly just coordination and balance (Brain Structures and Their Functions). The brain stem is underneath the cerebrum and in front of your cerebellum. It attaches the brain to the spinal cord and controls functions like breathing, digestion, heart rate and blood pressure (Carter 12). The brain is also divided into halves. The left side of the brain controls the right side of the body, while the right side of the brain, controls the left side of the body (Bellamy 17).
There are 4 main parts of the brain. Each part of the brain is responsible for different systems in our body.
The brain has many different parts to it which help one function through daily life; parts such as the cerebrum which controls voluntary movement and regulates functions such as thinking, speaking and the ability to recall information. The cerebellum controls the balance and coordination and finally the brain stem, which consists of the medulla oblongata and the spinal cord which controls all involuntary functions such as breathing, heart rate and blood pressure. The brain stem is also able to carry out these actions even when someone is asleep. To fully understand how crucial the brain is to survival one must understand the functions of the brain stem.
Alzheimer’s disease (AD) is one of the leading causes of death in America and there are currently more than five million people living with the disease (Alzheimer’s Association, 2014). What may be most troubling about these numbers is the fact that Alzheimer’s disease has no current cure. Alzheimer’s disease is a neurocognitive disorder and a common form of dementia that will affects a person’s memory, way of thinking and their behavior (Alzheimer’s Association, 2014). AD typically develops slowly and the more time a person has the disease the worse the symptoms will become. AD in its later stages becomes so severe that people with the disease cannot even do simple daily tasks. Although there is no cure there are still ways to prevent, delay, and possibly treat the disease.
Alzheimer's disease is the most common form of dementia, and this terminal, progressive brain disorder has no known cause or cure. Its greatest known risk factor is increasing age which is why is it is infamous for developing in the elderly, typically in ages 65 or over, however for the 5%(1) that develop Alzheimer’s in their 40s or 50s it is known as early Alzheimer’s. Because Alzheimer’s worsens over time, those with it tend to struggle with completing daily tasks especially elderly people. Given that there is no cure for Alzheimer’s, the treatments available slow the worsening of dementia symptoms and improve quality of life for those with Alzheimer’s and their caregivers. It is not known what causes Alzheimer's, however, those with Alzheimer's have been found to have abnormal amounts of protein (amyloid plaques) and fibres.(The amyloid plaques and fibres are found in regions of the brain where problem solving and thinking take place e.g The cerebrum.) Due to the unusual amounts of amyloid plaques and fibres, it reduces the effectiveness of healthy neurons and eventually, destroying them.
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 and controls coordination and balance.
& nbsp; The average life expectancy of a person with the disease is between five and ten years, but some patients today can live up to 15 years due to improvements in care and medical treatments. The cause of Alzheimer's has not been identified. been discovered yet and it cannot be possible to confirm a person has Alzheimer's until their autopsy following death. How does Alzheimer's develop? What causes Alzheimer's disease?
A myth about Alzheimer disease says that nothing can be done about the disease. This is not true. Much can be done to assist the person with Alzheimer’s disease to maintain the highest possible level of functioning as long as possible and in providing the highest quality of life.
The food chain ranges from earthworm to human, but many questions arise stating why do humans trump other animals and come out as the superior race amongst all animals, though other animals are clearly more powerful than humans. The question commonly asked is what exactly makes us special as humans. Some may say this is credited to the level of intelligence humans acquire over animals. The
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 society of neuroscience in an article states, “The cerebrum, the largest part of the human brain, is associated with higher order functioning, including the control of voluntary behavior. Thinking, perceiving, planning, and understanding language all lie within the cerebrum control.” The cerebrum is
It contains the primary motor cortex and the prefrontal cortex, which extend from the central sulcus to the anterior of the brain. The posterior part of the frontal lobe is the precentral gyrus which is specialized in the control of fine movements. The very most anterior portion of the frontal lobe is the prefrontal cortex. The neurons in this area have up to sixteen times as many dendritic spines as neurons in the occipital lobe or primary visual cortex. As a result, the prefrontal cortex is able to integrate a great deal of information (Kalat, 2004).
Doctors and researchers are confident that there will soon be a treatment for Alzheimer's. There have been millions who have died or who have progressed too far in their disease. The symptoms` of Alzheimer’s Disease are very hard for the sufferer to deal with. They do not want to rely on a family member to take care of themselves because something is wrong with them. Alzheimer's is a very complex disease. This why scientists have still not found any cure for it. People with Alzheimer's suffer for almost twenty to twenty five years before their death.The worse thing about this disease is the patient does not even remember their family or friends. They also do not release what the actual meaning of life is by the time they die. People suffering from Alzheimer's are emotionally dead long before the physically die.
... drawn. What makes us human? Through the examination of human evolution, both biological adaptations and cultural adaptations which are distinct to humans can be recognized. Biologically speaking, humans are unique in that they are bipedal, they have larger brain sizes, and longer leg length. When examining the cultural evolution of humans we have a complex language system, we live in communities, engage in symbolic behavior, and act through emotional impulses. While we are often considered to be superior to all other animals, it is important to recognize that while we are animals, we have very distinct characteristics and adaptations that separate us both biologically and culturally from all other animals.
The area at the front of the brain is the largest. Most of it is known as the cerebrum. It controls all of the movements that you have to think about, thought and memory.