Myelin

response of the body 's immune system is directed against the central nervous system. Within the central nervous system or CNS, the myelin sheath (fatty substance that surrounds the nerve fibers) is attacked by the immune system. This forms scar tissue, or sclerosis (scler/o meaning hard, -osis meaning abnormal condition or disease). The damaged or destroyed myelin sheath or nerve fibers results in interrupted nerve impulses to the brain, which leads to a variety of symptoms that will be…

Mastering Multiple Sclerosis Multiple Sclerosis is a nasty disease that can leave the person who has the disease immobilized. My dad has Multiple Sclerosis and it makes it very hard for him to walk and get around. It’s hard to see him struggle to walk me down the field for parents night. There is no current cure for Multiple Sclerosis and the only thing doctors recommend are medication to ease the symptoms, but there could be a better way to reverse the disease and stop its progression.…

Cells Interacting: Astrocytoma in its cancerous form is a situation in which a malignant tumor starts in Astrocyte cells, which have the purpose of protecting nerve cells. As the tumor grows invasively into these cells, it presses on the nerve cells and other parts of the brain. Cancerous astrocytoma will grow very quickly, spreading into other sections of brain tissue. As it does this, it will start to push on the brain itself and stop it from functioning properly. …. Function: The…

Phantom limb pain is defined as “pain perceived by the region of the body no longer present” (Subedi & Grossberg, 2011, p.1). This type of pain can be described as “shooting, severe burning, ischemic or crushing in nature or severe from…the limb being in a hyper-extended or unnatural position.” (Chapman, 2010, p. 35). Phantom limb sensation is the “nonpainful sensations experienced in the body part that no longer exist…phantom sensations are touch and pressure-like sensations.” (Subedi &…

Multiple Sclerosis is a chronic, progressive, degenerative disorder of the central nervous system. This disorder usually affects young adults between the ages of 20 and 40. Multiple frequency of occurrence is rare, .1% currently afflicts about 400,000 in the United States and 1 million worldwide. The cause of multiple sclerosis is unknown, but it is likely that multiple factors act in concert to trigger or perpetuate the disease. It has been hypothesized that multiple sclerosis results when an…

The first description of a Huntington-like disease dates back to the late 1800’s where George Huntington coined the name Huntington’s chorea. It is characterized as a neurodegenerative disorder passed within families within generations as an onset of unwanted choreatic movements, behavioral and psychiatric disturbances and dementia [1]. The name Huntington’s chorea eventually changed to the well-known Huntington’s Disease (HD) due to the recognition of other debilitative symptoms developed along…

Amyotrophic Lateral Sclerosis (ALS) is a motor neuron disease sometimes called Lou Gehrig’s disease. According to Orphanet Journal of Rare Diseases (2009), Amyotrophic Lateral Sclerosis (ALS) can be defined as a neurodegenerative disorder characterized by progressive muscular paralysis reflecting degeneration and death of motor neurons in the primary motor cortex, brainstem and spinal cord. In other words, it is a disease that attacks the cells responsible for controlling the muscle action we…

Unlike other bodily cells, neurons do not undergo cell division, meaning that their health is critical. When WNV infects the central nervous system, it triggers the response of a type of glial cell known as a microglial cell. Microglial cells are the primary component of the central nervous system’s immune response. These cells phagocytize, or swallow, and remove the pathogen-damaged nerve cells. They also activate proinflammatory cytokines which can unintentionally cause harm to healthy cells.1…

MFDS is an insight into “Medusa’s” lifestyle and entourage. Her entourage consists of people who are consumed by the party & drug scene. As they drive aimlessly searching for a party, they pregame with drugs, Maccas & alcohol. Although they continue to go nowhere they are happy to be anywhere but home. Medusa doesn’t really connect with her friends, but she needs them to not feel alone. As well as them, she also needs alcohol & drugs to further escape from her reality. 2. MOTION SICKNESS MS…

CNS consist of the brain and spinal cord while PNS include all the neural tissue outside the CNS. Neuron are the nerve cells which receive the stimulus from each part of the body and send it to the CNS. A neuron consist of body cell, dendrites, axon,myelin sheath and telodendrites. Normal neuron requires all the structure works together forming a good nervous system. The damages of any…