Which one of the following statements relating to multiple sclerosis (MS) is correct?Question 52Select one:a.MS affects females less frequently than males.b.It is a disease that affects neurons of the brain and central nervous system.c.Decreased blood brain barrier permeability may contribute to a greater incidence of MS.d.The incidence is lowest in countries far from the equator.e.The pathogenesis is largely due to B-cells destroying myelin sheaths surrounding neurons.

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 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 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

In the pathogenesis of Multiple Sclerosis:Question 59Select one:a.All these answers are correct.b.Inflammation (mediated by macrophages and lymphocytes) leads to myelin and axon destruction.c.Regions of brain tissue are replaced with connective tissue, i.e. "scarring".d.Attempted regeneration may occur in a shadow plaque.e.Plaques develop in the brain that may increase in size over time.