Myelin

ions across and through the axon walls leads to an action potential. The following terms: neuron, axon, myelin sheath, dendrites, terminal buttons, neurotransmitter, sodium ions, ion channels,…

Guillain-Barré Syndrome Guillain-Barré syndrome (GBS) is not something that many people have dealt with or even heard of for that matter. According to the CDC, there is somewhere between 3,000-6,000 cases of GBS per year in the United States. That amounts to 1-2 people out of 100,000 per year (CDC, 2009). For me, Guillain-Barré syndrome is something that I have known about since I was eight years old. Not only was I aware that it existed, I thought it was going to take my dad away from me.…

When I was seven years old I was diagnosed with chronic inflammatory demyelinating polyneuropathy. Which is an illness where the myelin sheath that protects the nerves has been damaged. This causes the signals from the brain to not reach the correct nerve. Such as the command to build muscle within your extremities or other areas of your body to go unnoticed. Which in my case caused such effects of not being able to turn a door knob or go upstairs without having to sit and pull myself up. It…

Marsha McMillen Unit 2 Psychology Assignment My personal feelings about regulating the volume on earbuds and earphones, I think it is a good idea, I am a grandmother of two older grandsons and when they were in high school, they would listen to their walk men with the volume so high that I could hear the music across the room. I was constantly telling them to turn the volume down, but they never listen to me at all. Sometimes I think that they have some hearing loss today, because when you…

Multiple sclerosis (MS) affects about 2.3 million people from around the world and women are affected by it by about two times more than men. For characteristics, MS has three different phenotypic subtypes; progressive relapsing MS, secondary progressive MS, and primary progressive MS. The causes of multiple sclerosis are uncertain, but it is considered an autoimmune disease. An autoimmune disease is where the immune system attacks its own tissue. MS is thought to be responsible for…

Student Name: Ho-Ling Helen Chan Student Number: 212855904 Introduction and Summary of Content Throughout Brainstorm: the Power and Purpose of the Teenage Brain, Daniel Siegel (2013) implied adolescents thrive due to their highly flexible and adaptable brain. Siegel (2013) worked as clinical psychiatry professor after graduating from medical school; his children furthered his enthusiasm in determining the surge in dopamine (DP) and other hormones led to the intense neural rewiring within their…

I. Key Points • Evidence from animal studies supports a causal relationship between intravenous and inhaled anesthetic exposure and brain development, triggering increased apoptosis, with negative neurocognitive and behavioral outcomes. • All these negative events take place during a high vulnerability period on brain development known as “brain spurt”. • Normally, 70% of neurons will undergo apoptosis during brain development. Gamma aminobutyric acid (GABA) and glutamate receptor modulation…

of pyramidal neurons in the superficial layers and presence of polymorphic cells in subgranular zone of ectal limb of dentate gyrus [30]. Astrocyte damage has been shown to be associated with myelin disintegration in the central nervous system. The modulation in the levels of myelin basic protein (MBP), myelin-associated glycoprotein and neurofilament (NF) are reported to be associated with arsenite toxicity. It also upregulate vacuolated axons, especially those are present in the…

other organisms. There is also a large lack of proper human testing to support acrylamide’s human carcinogenicity. 4.4 Summary of Toxicity Information Acrylamide is a scientifically tested and observed neurotoxin which causes the degradation of the myelin sheaths in both general and specific areas of the nervous system. It directly damages the axon terminals of brain’s neurons, but most heavily…

have a higher risk of obtaining osteoporosis, and the digestive system is affected from bowel problems, which causes constipation, diarrhea, and loss of bowel control. Multiple Sclerosis chemically changes the components of lipid and protein myelin. This happens in and around the plaques. Signs and symptoms…