Which of the following statement about Multiple Sclerosis (MS) is TRUE

Which of the following statement about Multiple Sclerosis (MS) is TRUE?Question 1Answera.It is caused by autoimmune attack to the myelin sheath. b.Obesity and genetics are believed to be strongly associated with MS. c.Sympotoms develop slowly over time and tend to affect the lower limb first.d.It tends to affect both side of the body.

Which one of the following statements relating to multiple sclerosis (MS) is correct?Question 30Select one:a.The pathogenesis is largely due to B-cells destroying myelin sheaths surrounding neurons.b.Decreased blood brain barrier permeability may contribute to a greater incidence of MS.c.The incidence is lowest in countries far from the equator.d.MS affects females less frequently than males.e.It is a disease that affects neurons of the brain and central nervous system.

Pertaining to the aetiology of Multiple Sclerosis (MS), which of these statements is correct?Question 2Select one:a.All these answers are correct.b.MS is typically first diagnosed in individuals between the ages of 20-40.c.The incidence of MS is higher in females than males.d.The incidence of MS is lowest in countries with a warm, tropical climate.e.The incidence of MS is highest in people with low levels of Vitamin D.

Which of these statements about Multiple Sclerosis (MS) is/are correct?W. Typically, neurons within the Peripheral Nervous System (PNS) are most  affected.X.  It is classified primarily as a Type III hypersensitivity (immune complex-mediated) disease.Y.   There is typically no neuronal axon destruction at all seen in MS.Z.  Inflammation in and around the optic nerve (optic neuritis) is a common early symptom.Question 59Select one:a.if only W, X and Y are correctb.if only W and Y are correctc.if only X and Z are correctd.if only Z is correcte.if all are correct

The symptoms of MS can come and go. This is because multiple choice 1the astrocytes take on the job of making the myelin.the oligodendrocytes are constantly renewing their myelin sheaths, so they are able to temporarily repair some of the damage.the neurons themselves are making the myelin covering.the neurons are able to temporarily adapt to the absence of the myelin and use an alternate system of propagating neural impulses. 2. Triggers of acute episodes of MS include multiple choice 2all listed choices.infections.pregnancy.stress. 3. Most researchers believe MS results from a combination of genetic and environmental factors. One peculiar observation regarding environment is the fact that the incidence increases as one gets farther from the equator. multiple choice 3FalseTrue