Which of the following Demyelinating disorders affects motor function only. aMultiple Sclerosis bAmyotrophic Lateral Sclerosis cGuillian-Barre Syndrome dParkinson's Disease

Which of the following neurological diseases also present with defects of motor control or muscle function? W. Cerebral Palsy.X.  Multiple Sclerosis.Y.  Motor Neuron Disease.Z.  Amyotrophic Lateral Sclerosis (ALS).Question 28Answera.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

State the clinical features seen in lower motor neuron lesions

Primary lateral sclerosis

Devic's syndrome is a condition involving the demyelination of the optic nerve and the spinal cord. Which of the following neuronal effects is NOT a direct result of Devic's syndrome? A.Decreased protection of the neuronB.Decreased speed of impulse propagationC.Decreased strength of the action potentialD.Decreased electrical insulation

In Guillain-Barre Syndrome, the Immune System Attacks and Degrades the Myelin Sheath of PNS Axons. Predict the Effect This Will Have on Nerve Impulse and Motor Function.In Guillain-Barre syndrome, the immune system attacks and degrades the myelin sheath of PNS axons. Predict the effect this will have on nerve impulse and motor function.Multiple ChoiceLost insulation from myelin will cause neurons of the PNS to be hyper-excitable and muscular spasms will result.The brain will slowly degrade and various brain functions will be lost, including motor functions.Lost insulation from myelin will cause neurons of the PNS to lose saltatory conduction, resulting in poor muscle function.Motor signals will not be sent from the brain down the efferent pathway because the brain cannot generate them.