Compare And Contrast Alzheimer's Disease And Normal Brain

The nervous system in general is quite a complex and sophisticated system which is responsible for regulating and coordinating the body’s activities. The central nervous system consists of the brain and spinal cord, mainly responsible for gathering information and responds to any changes within environment.

The central nervous system (CNS) is the processing center for the nervous system. It receives information from and sends information to the peripheral nervous system. The two main organs of the CNS are the brain and spinal cord. The brain processes

The brain can be considered the most complex organ in the body and the centrepiece of the nervous system. Although the brain works as a unified whole, neuroscientists have identified areas within it that perform specific functions. This makes the brain interconnected by three different layers: the central core, the limbic system, and the cerebral cortex. All of which contain structures that regulate everyday life and psychological function.

The brain is a soft, delicate, non-replaceable and spongy mass of tissue. Brain is considered as a kernel part of the body and has a very complex structure. The brain consists of mainly two types of tissues: gray matter (GM) and white matter (WM). The brain also contains a cerebrospinal fluid (CSF) that consists of enzymes, glucose, salts, and white blood cells. The brain is divided into three major parts, the hindbrain (including the cerebellum and the brain stem), the midbrain, and the forebrain (including the diencephalon and the cerebrum).The body is made up of many

the brain, such as neurons, glial cells, and how its billions of neural connections make up the

The cerebral cortex is the cerebrum’s outer layer. It is divided into four lobes, the frontal lobe, parietal lobe, temporal lobe, and occipital lobe.

According to Lu and Bludua, the outer layer of the cerebral hemisphere is called the cerebral cortex, which is the outer layer of the brain. Under the cortex is the limbic system, which consists of the amygdala, hippocampus, thalamus, and hypothalamus. In the temporal lobe, the amygdale purpose is to store and process strong feeling such as fear. Behind the amygdala is the hippocampus, which channels making memories and learning into short term memory. Then short term memory converts into long term memory. On the top of the brain stem is the thalamus. The thalamus is the “central processing center of the limbic system” (Lu & Bludau, 2011) which accumulates, processes, and distributes limbic and sensory information to the cerebral cortex. Beneath the thalamus is the hypothalamus. The hypothalamus maintains homeostasis and the body’s equilibrium. To keep the system at a set point, the equilibrium monitors body temperature, blood pressure, body weight, fluid

There are three parts of the brain: the cerebrum, the brain stem, and the cerebellum. The

The cerebrum makes up three quarters of the brain. In the cerebrum, there is the ability to problem solve, move, think and feel (“Alzheimer’s Disease,”n.d.). The cerebrum can be divided into two halves, the right hemisphere and the left hemisphere. Each hemisphere has four lobes, occipital lobe, parietal lobe, temporal lobe, and frontal lobe. Each lobe has specific tasks. For example, the occipital lobe is responsible for visual images.

There has only been one way to confirm if a person suffering from dementia truly had Alzheimer’s disease, an autopsy after death. Alzheimer’s disease has been found to leave a distinct effect on the human brain. The disease has been found to cause significant brain shrinkage. Neurological plaques and tangles have been the distinct lasting effect from the disease. Large deposits of the protein beta-amyloid have been associated with the neurological plaques, and abnormal tangles that lead to a failed transport system have been found all those suffering from the disease (Alzheimer’s Association, n.d.).

The cerebrum is the large part of the brain and it helps the body performs functions that involve body movements, emotional reactions, and the senses. The cerebrum is divided into four sections. Each of these sections allows the cerebrum to do some of its functions. The first section of the cerebrum is the frontal lobe and its function is to regulate emotions, speech patterns, and body motions. The second part of the cerebrum is the parietal lobe and this part is responsible for auditory and tactile interpretation. The third area of the cerebrum is the occipital lobe and it is responsible for visual interpretation. The fourth region of the cerebrum is the temporal lobe and it aids the body in remembering information and comprehending the definition of terms.

In 1906, Dr. Alois Alzheimer recognized a change in a fifty-year-old woman’s brain tissue post mortem now known as Alzheimer’s disease. Today, Alzheimer’s is the most prevalent form of dementia affecting about 5.3 million people in the United States (Alzheimer’s Disease International, 2015). This disease gradually destroys memory and thinking skills, eventually preventing the ability of simple tasks to be performed. In this research paper I will first discuss my personal reason for researching this topic and give a description of Alzheimer’s disease. I will also go through the history and important demographics behind this disease and describe three purposed hypothesis behind the cause of Alzheimer’s. Next I will describe the various symptoms

Forebrain: the largest section of the brain. It is responsible for a wide array of a person, such as speech, emotional and intellectual capabilities, memory, motion, and even feeling.

The cerebrum is the largest portion of the human brain. It takes up about 4/5 of the weight of the brain and has what is described as a wrinkled cortex. Wrinkled cortex increases the surface area of which increases the number of neurons. This makes human brain to be more efficient than other vertebrates ("Cerebrum vs Cerebellum," n.d.). The cerebrum in divided by the cerebral fissure, which separates it into two hemispheres, the left and right which is being further discussed by a fellow classmate. The two hemispheres are connected by the corpus callosum. Both hemispheres can also be divided into four lobes which we know as the frontal, parietal, temporal, and occiptal lobes. The frontal lobe helps aids us with reasoning, speech, movement,

(nerve cells). It has many folds or convolutions, creating a large surface area allowing many brain