1. The purpose of the myelin sheath is to increase the conduction of a nerve imp

Question

1. The purpose of the myelin sheath is to increase the conduction of a nerve impulse. Patients with multiple sclerosis have an auto-immune disorder where their own immune system attacks the myelin sheath and decrease the rate of conduction.

Select one:

True

False

2. A nerve is made of axons and dendrites from many neurons.

Select one:

True

False

3. Parkinson's Disease can be treated with pills containing dopamine. Dopamine can easily pass through the blood-brain barrier and affect the neurons in the brain.

Select one:

True

False

4. The space between axon of one neuron and the dendrites and the dendrites of the next neuron is called the synaptic cleft.

Select one:

True

False

Explanation / Answer

1. True. The statements given are correct.

2. False. It is made up of axons.

3. False. Parkinson's disease cannot be treated but pills and medicines can provide some relief in the disease symptoms. Moreover, dopamine does NOT pass through the blood brain barrier easily.

4. True. The space is basically between axon ending and dendrite of next neuron.

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